How many hydroflasks should i drink a day

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• Hydro Flask makes great insulated, travel-friendly drinkware that's durable and easy to carry.
• Its bottles come in a range of colors and maintain your hot or cold drink temperatures for hours.
  
• Nearly everyone at Insider Reviews has a Hydro Flask they love — here are 13 worth buying.

It's easy to think the products you see posted everywhere are overrated — but we're here to tell you Hydro Flask lives up to the hype. Vacuum-insulted, cold-retaining water bottles are a dime a dozen but Hydro Flask was one of the first companies to introduce the tech, and it's still one of the brands doing it best.

Hydro Flask offers far more than just water bottles now, too, selling wine glasses, soft coolers, backpack coolers, and stainless steel food storage. All of it excels at the same thing: keeping hot contents hot and cold contents cold.

Almost everything in the brand's lineup comes in an array of appealing colorways and features both a thoughtful and ergonomic design. These are, arguably, the two most important things that set Hydro Flask apart from its competition. The company also offers a lifetime warranty on most of its products. 

If you need help deciding which Hydro Flask bottle is the best for you, allow us to lend a hand. We're all too familiar with its drinkware line, including the classic 21-ounce Standard Mouth bottle and the 12-ounce Cooler Cup that doubles as a beer koozie. You can find our favorite Hydro Flask products below. 

Here are the 13 best Hydro Flask bottles and products we swear by

18-ounce Wide Mouth

18-ounce Wide Mouth, $29.95, available in 11 colors at Hydro Flask

I have multiple of these bottles that I use for everything from hiking and camping to staying hydrated at home (or the office). It's just large enough that I don't feel like I'm getting up multiple times a day to add more water, and is sufficient for short hikes. The fact it's able to keep water ice-cold for hours (and coffee piping hot) means whenever I take a drink, it's as if I just filled it up. — Rick Stella, Health & Fitness Editor

16-ounce True Pint

16-ounce True Pint, $27.99, available in 6 colors at Hydro Flask

The 16-ounce True Pint was designed for beer, but it's been my go-to office cup for nearly two years. Every day, I fill it with ice water and it stays cold for as long as I need it to be. It's so well insulated that the ice is usually still there in full form when I'm finished with the cup. I end up refilling it multiple times a day since I always drink a lot of water, but never because my drink turned lukewarm after a few minutes of sitting. —Amir Ismael, Insider Reviews senior reporter

12-ounce Kids Wide Mouth

12 oz Kids Wide Mouth, $29.95, available in 4 colors at Hydro Flask

I gave my niece one of these fancy sippy cups when she was 2 and it proved to be so invaluable that she still carries this around everywhere three years later. (For the record, Hydro Flask doesn't recommend these for kids under 3 years old.)

I recognize that kids don't much care if their water stays cold for 24 hours (although it will in this vacuum-insulated cup), but the real sell of the Kids Wide Mouth comes from the fact that it's stainless steel so you don't have to worry about any BPA or phthalate, it's incredibly durable to withstand knocks and drops, and has a silicone boot on the bottom for more stability when a kid precariously sets it down. The Kids Wide Mouth comes with a straw lid for easy sipping, and the mouthpiece flips in when not in use to avoid spilling. The bottle, lid, and straw are all dishwasher safe. —Rachael Schultz, Insider Reviews editor

20L Day Escape Soft Cooler

20L Day Escape Soft Cooler, $199.95, available in 2 colors at Backcountry

I love a well-designed cooler (embarrassingly, that's not sarcastic) and have tried all sorts of Yetis, Hydro Flasks, Igloos, and other brand offerings. But this newly-released backpack cooler from Hydro Flask has become my Spring go-to for park picnics, afternoons at the river, and, most of all, as a car cooler for road trips.

Its shoulder straps are comfortable, its zipper is very easy to pull and seal, and it rocks small features like stretchy-yet-secure side pockets and front daisy chains to hook other items onto for easy carrying. Although the single compartment is a bit of a mess once the ice melts (about 1.5 days in my experience), it can hold about 20 cans with ice (36 without), so it's been ideal for tailgating after mountain bike rides.

I also love that it sits upright on the ground or on the backseat floorboard, and has small handles at the top for resistance to more easily get the watertight zipper open. —Rachael Schultz, Insider Reviews editor

Shave Ice 32-ounce Wide Mouth (limited edition)

24-ounce Wide Mouth, $34.95, available in 10 colors at Hydro Flask 

I had always heard how great Hydro Flask's water bottles were, and I never paid much attention because I already have about half a dozen water bottles. Hydro Flask recently sent over its 24-ounce wide-mouth bottle, so I finally got to try one out, and it's great.

It really does keep drinks cold for 24 hours or more as advertised. I popped some ice and water into mine, screwed the lid tight, and left it alone for an entire day. When I opened it again, the ice was still partially there and the water was cold. Beyond the great insulation, I also like that the bottle's mouth is wide enough to accommodate ice cubes and that the lid has a cute little handle for portability. —Malarie Gokey, Insider's Lead Training Coordinator

64-ounce Growler

64-ounce Growler, $64.95, available in 3 colors at Hydro Flask

If you're lucky to live near a bar that offers fill-ups, bring home a tasty brew with the Insulated Beer Growler. The stainless steel container does a terrific job at keeping beer cold and carbonated before you're ready to drink, which helps retain that crisp, fresh taste that draft-beer drinkers enjoy. When a local Whole Foods used to offer beer on draft, the Hydro Flask Growler was how I transported hard-to-find craft brews home. Hydro Flask also recommends the Growler for kombucha. —Les Shu, Insider Reviews deputy editor

10-ounce Rocks Glass

10-ounce Rocks Glass, $19.95, available in 5 colors at Hydro Flask

My two 10-ounce rocks glasses have been my go-to camping mugs for about 5 years. For starters, the double-walled insulation means they'll keep coffee hot in the morning and whiskey or G+Ts cold at night, all without transferring the heat/cold to your hands (a big problem with the cute enamel camp mugs).

They're the perfect circumference to wrap your hand around, even as a woman, and the lack of a mug handle means they fit in cup holders. My two (teal and hunter green) have been with me on river trips, camping trips, and hikes, while living #vanlife for four months — countless dirty, sandy, abrasive environments — and neither have a single paint chip or ding in the steel.

Sometimes I do wish they were a little bigger, mostly for coffee in the morning, but their small, compact size is more often a blessing since they easily stash in my camp kitchen carryall or any bag I'm traveling with. I value their versatility so much that I even brought them in my duffel for a month-long road trip around New Zealand (more proof of how ideal their small size is). —Rachael Schultz, Insider Reviews editor

40-ounce Wide Mouth

40-ounce Wide Mouth, $49.95, available in 11 colors at Hydro Flask

My positive experience with the True Pint at work motivated me to buy something I could use when I was out of the office. I decided on the 40-ounce Wide-Mouth because of its large size and easy-to-carry handle. Out of the handful of thermoses and water bottles I own, this is now the only bottle I want to bring with me to the gym or when I know I'll be out and about in warm weather.

The TempShield insulation is designed to keep drinks cold for up to 24 hours — and it works so well that placing this bottle in the freezer or even in a scorching hot car that's sitting in the sun will do absolutely nothing to the temperature of your drink inside. If you fill it with really cold water and a few ice cubes, you'll have a refreshing drink throughout the entire day and part of the next. —Amir Ismael, Insider Reviews senior reporter

12-ounce Cooler Cup

12-ounce Cooler Cup, $24.95, available in available in 8 colors at Hydro Flask

The Cooler Cup checks all my boxes: It's a koozie for both bottles and cans, a sleek little substitute for a cocktail glass, and, conveniently, Hydro Flask's wine tumbler lid fits it, so it's great for coffee and tea, too.

The silicone sleeve is another selling point for me. It's mostly meant to seal the edge around bottles and cans and help keep them cool and snugly in place, but it also doubles as a non-slip coaster if you're using it as a coffee mug or beverage glass. I'll grab a few more of these and keep them in my camping and boating kits. I don't need wine glasses, cocktail glasses, or coffee mugs; this thing does it all, and it feels great in the hand. —Owen Burke, Insider Reviews reporter

Read the full review of the Cooler Cup here. 

18-ounce Food Flask

28-ounce Insulated Food Jaw, $44.95, available in 4 colors at Hydro Flask

I have the older version of this insulated food, previously called the Food Flask, but when I bring soup to work, this insulated jar is always up for the job, for three reasons. First, the cap tightens securely, so I never worry about finding a hot mess in my bag. Second, the vacuum insulation is effective at keeping the liquid hot for hours — nearly as hot as when it left the stovetop, no joke — even if I'm having a late lunch.

Third, it doesn't retain the smell of whatever I poured into it, which is important because I don't want hints of yesterday's clam chowder in today's butternut squash soup. I've tried many vacuum-insulated containers and I always go back to my Hydro Flask. —Les Shu, Insider Reviews deputy editor

12-ounce Coffee Mug

12-ounce Coffee Mug, $24.95, available in 4 colors at Hydro Flask

I'm usually strictly a water drinker at work, but I've been drinking a lot more tea and cold brew ever since getting this mug. When I want a warm beverage, like a soothing cup of green tea, this mug keeps it hot — almost too hot. I actually leave the lid open for a little bit before tightening it so I can drink my tea without scalding myself. And when I'm feeling a refreshing cold brew, it keeps my jolt of caffeine cold all afternoon. It's really comfortable to hold, plus the spout lid prevents accidental spills. I'm going to need another one of these to use at home. Yes, it's that useful. —Connie Chen, Insider Reviews senior reporter

I bring this mug with me everywhere at work — to every meeting, to lunch, to a coworker's desk, and back. It basically never leaves my sight. It keeps my coffee warm for hours when I'm too focused on something else to remember to drink it. The spout on the lid doesn't have any sort of top that seals so I don't love taking it on the subway, but I do love that it's sealed enough that I can walk to meetings quickly without worrying about spilling.

The real mug shape also makes me feel ... settled in, if that makes sense. I mean, I suppose that's a weird way to put it, but when I drink from tumblers and travel cups, I always feel like I'm on the go in a way I don't want to be once I've gotten into work and settled for the day. —Sally Kaplan, Insider Reviews executive editor

Read our full review of the Coffee Mug here. 

64-ounce Wide Mouth bottle

64-ounce Wide Mouth bottle, $64.95, available in 5 colors

This gigantic bottle has solved all my summer road trip hydration needs. I used to fill up every large water bottle in my house before a road trip or camping trip, but this big boy holds a whopping 64 ounces at once so I have to worry less about refilling at gas stations or water pumps. Its wide mouth is great for pouring into another bottle or drinking from directly. When I'm home, my boyfriend, who's a cook, likes to use the straw lid and sip from this big bottle all day to make sure he's staying hydrated. —Rachael Schultz, Insider Reviews editor

21-ounce Standard Mouth

21-ounce Standard Mouth, $32.95, available in 11 colors at Hydro Flask

The 21-ounce Standard Mouth Bottle made its way into my hands during my junior year of college, and I have been an avid Hydro Flask supporter since. As promised, the bottle kept my iced water cold throughout the day and my peppermint tea warm during long nights of studying.

Throughout the last couple of years at my university, this bottle withstood drops down cement stadium stairs, falls off of desks in a crowded room, and the one time that it slipped out of my hands and rolled a good 60 feet before stopping at the bottom of a hill. It was a tad beat up but still worked like a charm. —Megan Foster, former Insider Reviews intern

Connie Chen is a former senior reporter on the Insider Reviews team, where she led coverage of home textiles, home entertaining, and food and drink. While at Insider, she specialized in all the things that enhance life at home, from the most comfortable bed sheets and fluffy pillows to cool online wine clubs and bartender-approved cocktail shakers. She combined rigorous testing methods, conversations with professionals, and active knowledge of the home and kitchen space to help readers get the most out of their money. When she's not changing duvet covers or washing towels twice a day for articles, she loves talking about and trying the newest snacks, drinks, and food gifts. You can see more of her testing process and other behind-the-scenes of being a product journalist on her Instagram @connayreviews.  Connie joined Insider Reviews as an early member in 2017 and has also reported on products and services in the style, tech, fitness, travel, and e-learning spaces, with a particular interest and expertise in emerging startups. She has represented the team at CES and moderated panels on media business and the future of retail. Connie graduated from UC Berkeley with degrees in media studies and business administration, which help inform her perspective on and coverage of industry trends, as well as the competitive e-commerce landscape at large. Read some of her work: The 4 best cocktail shakers in 2021 The 7 best women's bathrobes in 2021 The 5 best wine openers and corkscrews we tested in 2021 The 5 best bed sheets we tested in 2021  The 5 best cordless vacuums we tested in 2021 12 direct-to-consumer kitchen startups that are changing the way we shop for cookware and knives 8 tableware startups changing the way we shop for dishes Even chefs experience cooking burnout — here's how they get re-inspired in the kitchen How businesses create successful virtual experiences 50 cookbooks from famous restaurants across the US that will help you recreate their best dishes at home Learn more about how our team of experts tests and reviews products at Insider here. Learn more about how we test kitchen products.

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Disclosure: Written and researched by the Insider Reviews team. We highlight products and services you might find interesting. If you buy them, we may get a small share of the revenue from the sale from our partners. We may receive products free of charge from manufacturers to test. This does not drive our decision as to whether or not a product is featured or recommended. We operate independently from our advertising team. We welcome your feedback. Email us at .

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