Hydro Flask Water Bottles Are on Sale from $18 at Amazon

Mar 07, 2025

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Including an option that fits in a car cupholder

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Water bottles might be the most fashionable self-care tools out there. The best ones look sleek and stylish while keeping your water cool and conveniently close, and Hydro Flask makes some of the top-rated water bottles on Amazon.

Similar to brands like Stanley and Yeti, Hydro Flask water bottles are vacuum insulated and made from stainless steel that’s coated in a host of eye-catching colors. They’re easy to carry, come in a range of sizes, and have a bunch of different lids. Even better? Some of the most popular Hydro Flask cups are on sale right now at Amazon starting at just $18.

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More than 24,000 Amazon shoppers have given this classic Hydro Flask water bottle a five-star rating, ranking it among the best-selling water bottles on the site. It comes in more than 20 colors and four sizes up to a half-gallon option. It’s dishwasher-safe with a tight-fitting screw-on lid and 3-inch-wide mouth.

“I have been using it daily for over a year,” wrote one reviewer. “It's leak-proof and keeps ice from melting all day. I have dropped it multiple times without any problems.”

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The Hydro Flask 40-ounce tumbler has a classic profile and all the quality features you’d want: Its base is slim enough to fit most car cupholders, its lid is leak-resistant, and its flexible straw is easy to sip from. Plus, all the parts can go in the dishwasher. It comes in 38 colors, with black, white, and the funky limited-edition matcha ombré each at their lowest price in 30 days. Meanwhile, the petite 20-ounce option is on sale for just $18.

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This option comes with the Hydro Flask Chug Cap, a great pick for taking on runs and rides because of the controlled sips it allows. You still get the handy carrying strap of the classic screw-top lid but with a narrow spout that fits into your mouth for less spilling — and you can still unscrew the entire lid to get the wide-mouth opening when needed. “Great for people with smaller hands,” wrote one reviewer. “Lightweight, practical, and nicely insulated.”

Find the size, color, and lid you want most with even more Hydro Flask deals below before they go back to full price.

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