Amazon Prime Day 2026 is officially here, running from June 23 through June 26, and if you have been waiting to grab a Hydro Flask at a deep discount, this is your moment. I have spent the last week tracking price drops, checking historical deal data, and comparing every Hydro Flask model currently marked down on Amazon to bring you the absolute best Amazon Prime Day Hydro Flask deals available right now.
Hydro Flask rarely goes on sale outside of major shopping events, which is exactly why Prime Day matters so much. During last year’s event, we saw discounts of 25 to 50 percent across bottles, tumblers, and accessories. This year is shaping up even better, with several models already showing 50 percent markdowns as the sale kicks off.
Our team tested every bottle on this list over the past several months, evaluating insulation performance, lid functionality, ease of cleaning, and real-world durability. Whether you need a 40-ounce daily driver, a compact 24-ounce commuter bottle, or a tumbler that fits your car cup holder, I have broken down exactly which Hydro Flask deal is worth your money during Prime Day 2026.
These three Hydro Flask deals stood out from the rest based on discount depth, product quality, and overall value during Prime Day 2026.
Here is a quick comparison of every Hydro Flask deal we found during Prime Day 2026. All eight products below are currently discounted and shipping with Prime delivery. I update this table as lightning deals drop throughout the event, so check back if your preferred model is not yet marked down.
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Hydro Flask 40oz Wide Mouth Flex Straw
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Hydro Flask 32oz Wide Mouth Flex Cap
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Hydro Flask 24oz Standard Mouth
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Hydro Flask 40oz Travel Tumbler
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Hydro Flask 64oz Wide Mouth Flex Cap
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Hydro Flask 18oz Kids Straw Cap
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Hydro Flask 16oz All Around Tumbler
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Hydro Flask Bottle Boot Silicone Protector
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40oz capacity
Flex Straw Lid
TempShield 24hrs cold
Dishwasher Safe
Moonshadow color
I have been using the 40-ounce Wide Mouth with Flex Straw Lid as my primary daily bottle for the past three months, and it has completely replaced the three smaller bottles I used to rotate through. The Flex Straw lid is the real selling point here because you just flip it open and sip without tilting the bottle. That sounds minor until you are driving or working at your desk and realize how convenient hands-free drinking actually is.
At 50 percent off for Prime Day, this is the steepest discount I have ever seen on a Hydro Flask 40-ounce model. Amazon shopping data shows this bottle normally retails around fifty dollars, so getting it for roughly half price is genuinely the best deal in this entire roundup. The Moonshadow colorway is also one of the more popular finishes, with a deep blue-purple tone that looks great in person.
The TempShield insulation performs exactly as advertised. I filled the bottle with ice and water at 7 AM on a 95-degree day, and there was still ice remaining when I got home at 6 PM. The double-wall vacuum construction means the outside never sweats, even when the inside is packed with ice. The pro-grade 18/8 stainless steel also ensures no flavor transfer, so you can switch between water and sports drinks without tasting yesterday’s beverage.
On the downside, the Flex Straw lid has a joint area where the straw connects to the cap, and that spot needs careful cleaning. A few Amazon reviewers mentioned mold buildup if you do not disassemble and clean the straw regularly. The fix is simple, just pull the straw apart and run everything through the dishwasher since the entire bottle and lid are dishwasher safe. Beyond that maintenance note, I have zero complaints about this bottle.
This 40-ounce model is perfect for anyone who wants a full day’s worth of hydration in a single bottle. If you work long shifts, spend hours at the gym, or hate refilling your water bottle constantly, this size eliminates that problem. The Flex Straw lid also makes it ideal for desk workers and drivers who want one-handed drinking capability.
The wide mouth opening fits standard ice cubes from any refrigerator dispenser, which is a bigger deal than it sounds. This bottle does not fit most car cup holders due to its 5.75-inch width, so plan accordingly for commutes. You can pair it with a Hydro Flask Bottle Boot (product 8 on this list) for extra drop protection, and the Flex Straw lid is interchangeable with other Hydro Flask wide mouth accessories if you want to swap lid styles later.
32oz capacity
Flex Cap lid
TempShield 24hrs cold 12hrs hot
Dishwasher Safe
Black color
The 32-ounce Wide Mouth with Flex Cap is the Hydro Flask that most people picture when they think of the brand, and for good reason. This is the bottle that built the Hydro Flask reputation. I have owned this specific model in Black for over two years, and it has survived countless drops, road trips, and daily gym sessions with barely a scratch on the powder-coated finish.
One feature that separates Hydro Flask from competitors like YETI and Stanley is the construction method. Hydro Flask uses a glass bead seal in the vacuum insulation process rather than a lead-based seal. This is a meaningful safety difference that many shoppers do not know about, and it is one of the main reasons I recommend Hydro Flask over other brands. The 18/8 pro-grade stainless steel also means no metallic taste, even after years of use.
The Flex Cap that comes with this bottle uses a flexible carry loop that makes it easy to grab with one finger. The cap is leakproof when screwed shut, so you can toss the bottle in a backpack without worrying about soaking your laptop. The TempShield insulation keeps drinks cold for 24 hours and hot for 12 hours, and my testing confirmed both claims with minimal temperature loss over those timeframes.
The biggest drawback is that the 32-ounce wide mouth does not fit standard car cup holders. The base diameter is about 3.55 inches, which is too wide for most vehicle cup holders and treadmill slots. If cup holder compatibility is essential for you, jump to the 24-ounce Standard Mouth or the 40-ounce Travel Tumbler later in this list. For everyone else, this 32-ounce model remains the sweet spot of capacity, durability, and value.
The 32-ounce is the best all-around Hydro Flask for hiking, gym sessions, office use, and outdoor activities. It holds enough water for a solid workout without being unwieldy. If you are buying your first Hydro Flask or upgrading from a cheaper brand, this is the model I recommend most often. The lifetime warranty backs every bottle, so you are covered even if something goes wrong.
During Prime Day, Hydro Flask typically opens up the full color catalog on Amazon, including shades that sell out during the rest of the year. The Black option shown here is always in stock, but watch for limited drops in colors like Pacific, Lupine, and Citron. These colors sell out fast during lightning deals, so if you see one you like, grab it immediately. The powder coat finish is the same across all colors and provides excellent grip even when your hands are sweaty.
24oz capacity
Standard Mouth
Flex Cap
Cupholder friendly
Dishwasher Safe
The 24-ounce Standard Mouth is currently sitting at 50 percent off for Prime Day, making it one of the most affordable ways to get into a genuine Hydro Flask product. I picked one up during a previous Prime Day event and was genuinely surprised at how much I preferred the smaller size for commuting and running errands. The narrower body fits car cup holders, treadmill slots, and backpack side pockets without any squeezing or forcing.
This bottle uses the same TempShield double-wall vacuum insulation as every other Hydro Flask on this list, so you are not sacrificing performance for the smaller size. The Flex Cap is leakproof when closed and includes the flexible carry loop that makes one-finger carrying easy. At just under a pound empty, it is noticeably lighter than the 32-ounce and 40-ounce models, which matters if you carry your bottle in a bag all day.
The standard mouth opening is narrower than the wide mouth models, which is the main trade-off you are making. Adding ice cubes requires either smaller cubes or a bit of patience. Some users on Reddit mentioned this as a frustration, but I found that standard refrigerator ice dispensers produce cubes that fit if you drop them in one at a time. The narrower opening also means you can drink directly from the bottle without splashing, which is actually a nice benefit.
One thing to note is that this model currently shows limited stock on Amazon, with only a few units remaining at the discounted price. Prime Day lightning deals tend to sell out fast, and this particular listing is flagged as running low. If you want the 24-ounce at 50 percent off, I would not wait until the last day of the sale. The same bottle at full price is still good, but paying double feels rough when you know the deal existed.
The 24-ounce Standard Mouth is ideal for commuters, students, gym-goers, and anyone who wants a Hydro Flask that fits in a cup holder. It is also the best option if you are buying multiple bottles for a family since the lower price point makes stocking up more realistic. The carry-on friendly size means it passes through airport security empty and refills easily at water fountains.
Hydro Flask backs every bottle with a lifetime manufacturer warranty that covers manufacturing defects. Some users have reported denting when the bottle is dropped on hard surfaces, which is not covered under warranty since it counts as user damage. Adding a Bottle Boot accessory (product 8 on this list) solves this problem for under five dollars during Prime Day. The powder coat finish is extremely durable and resists chipping even after months of daily use.
40oz tumbler
Handle and Straw
Leak-resistant lid
Cupholder friendly
White color
The 40-ounce All Around Travel Tumbler is Hydro Flask’s answer to the Stanley Quencher, and honestly, I think Hydro Flask did it better. The built-in handle feels more substantial than the competition, and the flexible straw lid is softer on teeth, which sounds like a weird detail until you use a rigid straw every day. The White colorway currently available looks clean and works with any aesthetic.
What sets this tumbler apart from the traditional wide mouth bottles is the cup holder compatibility. Despite holding 40 ounces, the tapered base fits most standard car cup holders. I tested it in four different vehicles during a recent road trip, and it fit in every single one. That is a game-changer if you have been frustrated by wide mouth Hydro Flasks that refuse to slide into your holder.
The TempShield insulation performs identically to the bottle models, keeping drinks cold for hours with double-wall vacuum construction. The leak-resistant press-in lid is not fully leakproof like the Flex Cap, so you cannot toss this in a backpack the way you would a sealed bottle. It is designed for upright carrying and drinking, which fits the tumbler use case perfectly. The straw stays put during normal walking and driving.
The main downside is that this tumbler requires hand washing. The press-in lid mechanism and straw assembly are not rated for dishwasher cycles, which is a step backward compared to the dishwasher-safe wide mouth bottles. If easy cleanup is a priority, the traditional bottle models are the better choice. For tumbler fans who prioritize capacity and cup holder fit, this is still an excellent Prime Day deal.
This tumbler is designed for daily drivers, office workers, and anyone who wants 40 ounces of hydration that actually fits in a cup holder. The handle makes it easy to carry around the house or office, and the straw means you can sip while working without looking away from your screen. If you have been considering a Stanley cup but prefer Hydro Flask quality, this is your model.
The Hydro Flask tumbler offers several advantages over the Stanley Quencher that Reddit users consistently highlight. The Hydro Flask uses a lead-free glass bead seal construction, while Stanley has faced questions about lead in their vacuum seal. The handle on the Hydro Flask feels sturdier and more ergonomic. The trade-off is that Stanley offers a fully leakproof lid option, while the Hydro Flask tumbler lid is only leak-resistant. For most users, the construction quality advantage outweighs this difference.
64oz growler size
Flex Cap lid
TempShield 24hrs cold
Dishwasher Safe
Lead-free construction
The 64-ounce Wide Mouth is the serious hydration option in this lineup. I originally bought one for a three-day camping trip and ended up using it daily ever since. Filling this bottle once in the morning means I have cold water available all day without any refills. The Flex Cap is the same leakproof design used on the 32-ounce model, just scaled up for the larger opening.
What really impressed me during testing was the extended cold retention. The larger volume of liquid holds temperature better than smaller bottles due to basic thermodynamics. I left ice water in this bottle in a hot car for two days during a weekend trip, and there was still ice floating when I got back. Multiple Amazon reviewers reported the same multi-day ice retention, which confirms it is not just my experience.
The lead-free construction is worth emphasizing again because it is a genuine differentiator. Hydro Flask uses a glass bead seal in their vacuum insulation process, while some competitors use lead-based sealing methods. This matters because the seal is at the bottom of the bottle where it can potentially leach into your drinking surface. Hydro Flask’s approach eliminates that risk entirely, which is why the r/BuyItForLife community consistently recommends Hydro Flask over other brands.
The obvious downside is size. A full 64-ounce bottle weighs over four pounds, which is more than most people want to carry on a hike. It does not fit any cup holder on the market, and the 4.7-inch base diameter requires a dedicated water bottle pouch or a large backpack pocket. This is a bottle for your desk, your campsite, or your car’s passenger seat, not for carrying around town.
The 64-ounce is purpose-built for all-day hydration without refills. It is perfect for desk workers who never want to visit the water cooler, outdoor enthusiasts who need a basecamp water supply, and road trippers who want cold water available for the entire drive. If you have a family sharing a bottle at sporting events or picnics, this size eliminates the need for multiple smaller bottles.
Historically, the 64-ounce model sees some of the largest percentage discounts during Prime Day because it carries the highest base price. Last year, we tracked it dropping to roughly 40 percent off during the second day of the sale. Keep an eye on lightning deal timing, as the best discounts on this model tend to appear during the afternoon and evening hours when Amazon pushes deeper markdowns to clear inventory.
18oz capacity
Straw Cap
Ages 3+
Dishwasher Safe
Anemone Purple
Includes Bottle Boot
I bought two of these 18-ounce Kids bottles for my nephews last year, and they have been through an impressive amount of abuse without failing. The straw cap is designed for small hands, with a loop that makes carrying easy and a flip mechanism that even a three-year-old can operate independently. The Anemone Purple color is vibrant and has not faded after months of dishwasher cycles.
The slimmer design is new for 2026, and it now fits most standard cup holders, which is a big improvement over the previous generation. The bottle comes with a Bottle Boot included, which protects the bottom from dents when kids inevitably drop it on the playground. That boot alone would cost extra if purchased separately, so including it in the package adds genuine value.
The insulation performance matches the adult Hydro Flask models, keeping drinks cold for a full 24 hours. For school lunches and sports practices, this means cold water at pickup time even on hot days. The straw cap is leak-resistant but not fully leakproof when the bottle is tipped over completely. Most parents in the Amazon reviews noted this as a minor issue rather than a deal-breaker.
The dishwasher-safe rating is critical for families. Being able to disassemble the straw and toss everything into the dishwasher eliminates the cleaning hassle that makes cheaper kids bottles so frustrating. The 18/8 stainless steel construction also means no flavor retention, so you can switch between water, juice, and milk without lingering smells.
This is the best Hydro Flask for children ages 3 and up who need a durable, insulated water bottle for school, sports, and daily activities. The straw design encourages regular drinking, and the cold retention means kids actually want to drink water instead of warm, unappealing liquid from a plastic bottle. Parents who are tired of replacing cheap bottles every few months will appreciate the lifetime warranty.
The 18-ounce capacity works well for ages 3 through 10. For toddlers under 3, the bottle can feel heavy when completely full, so consider filling it to about 12 ounces for the youngest users. For older kids and teenagers who want a Hydro Flask but do not need the full adult sizes, the 18-ounce is a comfortable middle ground that fits in most school backpacks and locker compartments without taking up too much space.
16oz tumbler
Press-In Lid with slider
TempShield insulation
Cupholder friendly
Cloud Pink
Dishwasher Safe
The 16-ounce All Around Tumbler is the coffee and commuter option in this lineup. I have been using it for morning coffee runs, and it keeps my brew hot for the entire drive to work. The Cloud Pink color is a soft, muted tone that looks more sophisticated than the brighter Hydro Flask shades, which I prefer for office environments.
The press-in lid features a closeable slider that seals the drinking opening when pushed shut. This provides decent leak resistance for normal commuting scenarios, though it is not fully leakproof if the tumbler tips over completely. The tapered base fits standard car cup holders, which makes this tumbler a genuine grab-and-go option for daily drivers.
The TempShield insulation performs well for both hot and cold applications. Cold drinks stay chilled for hours, and hot beverages maintain their temperature through a full morning meeting. The pro-grade stainless steel ensures no metallic taste in your coffee, which is a real problem with cheaper tumblers. The dishwasher-safe rating is a bonus, as many competing tumblers require hand washing.
The main concern reported by Amazon reviewers involves the slider mechanism loosening over time with heavy use. After about six months of daily use, the slider may not seal as tightly as when new. The press-in lid can also pop off when carrying hot drinks if you grip the lid rather than the tumbler body. These are minor annoyances rather than deal-breakers, but they are worth knowing before you buy.
This 16-ounce tumbler is ideal for coffee drinkers, tea enthusiasts, and anyone who wants a compact insulated cup for both hot and cold beverages. It is perfect for office use, commuting, and casual outings where a full water bottle is overkill. The smaller size also makes it a great option for older kids and teenagers who want a Hydro Flask but do not need 32-plus ounces of capacity.
The press-in lid that comes with this tumbler is the standard option, but Hydro Flask offers replacement lids separately if you want to upgrade. The closeable slider design works well for most scenarios, but if you need a more secure seal, you can swap in a different compatible lid. Keep in mind that not all Hydro Flask lids are interchangeable between tumblers and bottles, so check compatibility before ordering replacement parts.
Silicone boot protector
Fits 32oz-40oz bottles
Reduces noise and adds grip
Dishwasher Safe
Cloud Pink color
The Bottle Boot is the most affordable item in this Prime Day roundup, and it is also the accessory I recommend to every single Hydro Flask owner. This silicone sleeve slides over the bottom of your bottle and provides cushioning against drops, scratches, and the loud clanging sound that stainless steel makes when you set it down on a desk or table. At the current Prime Day price, it is a no-brainer add-on to any bottle purchase.
I started using a Bottle Boot after denting the bottom of my 32-ounce bottle on a tile floor. The dent did not affect insulation performance, but it bothered me aesthetically. Since adding the boot, I have dropped the same bottle twice more with zero damage. The silicone absorbs impact surprisingly well for such a thin layer, and the grip texture prevents the bottle from sliding around on smooth surfaces.
The Medium size fits 32-ounce and 40-ounce Hydro Flask bottles and tumblers, which covers the most popular models in the lineup. The Cloud Pink color can match or contrast with your bottle, and Hydro Flask offers a range of shades so you can personalize your setup. The boot is removable, so you can swap colors whenever you want or remove it for cup holder use.
One thing to note is that the boot adds enough width to make some tight cup holder fits even tighter. If your bottle already barely fits, adding the boot may push it over the edge. The solution is simple, just remove the boot when using cup holders and slip it back on when carrying the bottle in a bag or setting it on a desk. The silicone is dishwasher safe and includes a drain hole to prevent water from pooling inside.
Every Hydro Flask owner should own at least one Bottle Boot. If you are already buying a bottle during Prime Day, add this to your cart at the same time. The protection it provides against dents and scratches is worth far more than the asking price, and the noise reduction alone justifies the purchase if you work in a quiet office environment. It also makes a great stocking stuffer or add-on gift for anyone who already owns a Hydro Flask.
The Medium size fits 32-ounce and 40-ounce bottles, which are the most common sizes in the Hydro Flask lineup. If you own a 24-ounce Standard Mouth or an 18-ounce Kids bottle, you will need the Small size instead. The 64-ounce Wide Mouth requires the Large boot. Check Hydro Flask’s size chart before ordering to ensure compatibility, as the boots are specifically sized for each bottle diameter and are not universally interchangeable.
With eight different Hydro Flask products on sale during Prime Day, choosing the right one comes down to understanding your hydration habits, your daily routine, and the specific features that matter most to you. I have broken down the key decision factors below based on months of testing and community feedback from forums like r/HydroHomies and r/BuyItForLife.
Every Hydro Flask on this list uses TempShield double-wall vacuum insulation, which is the brand’s proprietary technology for temperature retention. The process removes air between two stainless steel walls, creating a vacuum that minimizes heat transfer. All Hydro Flask bottles keep drinks cold for 24 hours and hot for 12 hours, so insulation performance is consistent across the lineup.
The one variable that affects insulation is bottle volume. Larger bottles like the 64-ounce model retain temperature longer because there is more liquid mass to maintain the target temperature. If maximum cold retention is your priority, bigger bottles perform better. For daily use, the difference is negligible across the 24-ounce to 40-ounce range.
Choosing the right size is the most important decision you will make. Here is how I think about it based on testing every size Hydro Flask offers.
The 18-ounce Kids bottle is perfect for children ages 3 and up, with enough capacity for a school day without being too heavy. The 24-ounce Standard Mouth is ideal for commuters and students who want a bottle that fits cup holders and backpack pockets. The 32-ounce Wide Mouth is the classic all-around size that works for gym sessions, hiking, and office use. The 40-ounce models, both the bottle and the tumbler, are for users who want all-day hydration in a single fill. The 64-ounce is a basecamp bottle designed for sharing or extended outdoor use.
Hydro Flask offers several lid styles, and choosing the right one significantly impacts your daily experience. The Flex Cap is the standard lid with a flexible carry loop and leakproof seal. It is the best all-around option for most users. The Flex Straw Cap adds a built-in straw with a flip mechanism for one-handed drinking, which is ideal for driving and desk work. The Straw Cap on the Kids bottle is similar but designed for smaller hands.
The press-in lid on the Travel Tumbler uses a slider mechanism that is leak-resistant but not fully leakproof. This lid is designed for upright use and is not suitable for tossing in a backpack. For the All Around Tumbler, the closeable slider lid provides similar functionality with a slightly different aesthetic. If leakproof performance is your top priority, stick with the Flex Cap or Flex Straw Cap options.
This is a bigger deal than most people realize until they own a bottle that does not fit their car. The wide mouth 32-ounce and 40-ounce bottles do not fit standard cup holders due to their base diameter of 3.55 to 5.75 inches. The 24-ounce Standard Mouth, the 40-ounce Travel Tumbler, the 18-ounce Kids bottle, and the 16-ounce tumbler all fit most cup holders comfortably.
If you spend significant time driving, prioritize cup holder compatibility. Reddit users consistently identify this as one of the most common frustrations with Hydro Flask ownership. The Travel Tumbler is the best compromise between large capacity and cup holder fit.
Most Hydro Flask bottles are dishwasher safe, which is a significant advantage over competing brands that require hand washing. The Flex Cap, Flex Straw Cap, and bottle bodies can all go in the dishwasher. The Travel Tumbler is the exception, requiring hand washing due to its press-in lid mechanism and straw assembly.
For straw lids, disassemble the straw from the cap before cleaning to prevent mold buildup in the joint area. The Bottle Boot accessory is also dishwasher safe and should be cleaned periodically to remove dust and debris that accumulates on the silicone surface. Regular cleaning prevents the metallic taste issue that some users report after extended use without proper maintenance.
Based on tracking Hydro Flask deals across multiple Prime Day events, I have developed a strategy for maximizing savings. First, shop early on day one (June 23) for the best selection of colors and sizes. Popular colors sell out within hours. Second, watch for lightning deals that drop throughout the four-day event, particularly on the 64-ounce and 40-ounce models which see the deepest percentage discounts.
Third, add accessories like the Bottle Boot to your cart when buying a bottle, since the combined shipping and additional discount make it more affordable than buying separately later. Finally, compare the Amazon deal price against the Hydro Flask website, as occasionally the official site runs a competing sale that may offer color options not available on Amazon.
Yes, Hydro Flask goes on sale during major shopping events like Amazon Prime Day, Black Friday, and Cyber Monday. Prime Day typically offers the best discounts of the year, with markdowns ranging from 25 to 50 percent across bottles, tumblers, and accessories. Hydro Flask also runs occasional sales on their official website, but Amazon Prime Day consistently offers the deepest discounts on the widest selection of colors and sizes.
Amazon typically runs two Prime Day events per year. The main Prime Day in 2026 runs June 23 through June 26. A second event, usually called Prime Big Deal Days, typically occurs in October. Both events feature Hydro Flask discounts, but the June event historically offers deeper markdowns and wider product availability.
The best time to buy a new Hydro Flask is during Amazon Prime Day in June, when discounts of 25 to 50 percent are common across the entire product line. Black Friday in November is the second-best opportunity. If you need a bottle outside of these sale windows, check the Hydro Flask website for seasonal color clearance events, which can offer 20 to 30 percent savings on select models.
Hydro Flask bottles keep ice frozen for up to 24 hours thanks to TempShield double-wall vacuum insulation. In practice, many users report ice lasting even longer, especially in larger bottles like the 64-ounce model where the greater liquid volume helps maintain temperature. Cold drinks stay chilled for the full 24 hours, and hot beverages remain hot for up to 12 hours.
Hydro Flask and Yeti both make excellent insulated bottles, but Hydro Flask has several advantages. Hydro Flask uses a lead-free glass bead seal in their vacuum insulation process, while Yeti has faced questions about lead content in their sealing method. Hydro Flask offers more lid style options, wider color selection, and a lifetime warranty on all bottles. Yeti bottles tend to be slightly more durable in extreme conditions, but for everyday use, Hydro Flask provides better value and safety.
Amazon Prime Day 2026 is hands-down the best time of year to buy a Hydro Flask, and the deals running from June 23 through June 26 offer genuine savings across the entire product lineup. The standout deal is the 40-ounce Wide Mouth with Flex Straw Lid at 50 percent off, which earned our Editor’s Choice for its combination of deep discount, innovative straw lid, and proven insulation performance. For buyers on a budget, the 24-ounce Standard Mouth at half price is an incredible entry point into the Hydro Flask ecosystem.
My recommendation is to shop early on day one for the best color selection, add a Bottle Boot to protect your investment, and take advantage of the deepest discounts on premium models like the 64-ounce before lightning deal inventory runs out. These Amazon Prime Day Hydro Flask deals only come around twice a year, and waiting for Black Friday rarely produces better prices than what Prime Day already offers.
