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Hydro Flask 40oz Wide Mouth Water Bottle


Item # HYF0017

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  • Mango, One Size ($42.95)
  • Stainless, One Size ($42.95)
  • Kiwi, One Size ($42.95)
  • Plum, One Size ($42.95)
  • Raspberry, One Size ($42.95)
  • Sage, One Size ($42.95)
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Item # HYF0017


Fill Hydro Flask's insulated 40oz Wide Mouth Water Bottle with ice and water for hot hikes, or warm tea for cold ski tours. Its TempShield insulation keeps water ice-cold for up to twenty four hours, and it keeps hot drinks toasty for up to six hours. Hydro Flask updated this years' model with a flexible loop on the wide mouth cap for long-lasting convenience.

  • Pro grade stainless steel
  • TempShield double insulation
  • Flex cap
  • BPA-free

Tech Specs

18/8 stainless steel
40 fl oz
Recommended Use:
casual, hiking
Manufacturer Warranty:

Reviews & Community


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Still Awesome

  • Familiarity: I've put it through the wringer

I just keep buying more. Great gifts!

Hydroflask is always the right call!

  • Familiarity: I've put it through the wringer

I had a lot of options to choose from when picking a water bottle to take up to Strugis this year for Bike Week. During the rally, ice becomes like gold. Being able to keep ice frozen all day is vital to my success as a vendor. I had narrowed down the options between this and the YETI. I knew from experience with Hydroflask that it would perform just as well and I jumped on this in Sage, my favorite color. I had a blast and the 40 OZ bottle from Hydroflask kept my body extremely well hydrated all rally long. Tell all your friends and family! Vacuum insulation would keep my ice frozen over night even.

Avg. ride time: 4m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Best water bottle

    My favorite! Put ice water in it and there was still ice in there 24 hours later. Awesome


    • Familiarity: I've put it through the wringer

    I really like having a larger water bottle. 40 oz is great when you need it and keeps the temp.

    Keeps water cold all day

      I love that I can be in the sun all day and still be able to have cold water. The perfect size for hiking.

      Keeps Everything Cool

      • Familiarity: I've put it through the wringer

      I use this mostly for casual every day use as something to bring my milk to work in. It works great! I can get to work and maintain a fresh bowl of cold cereal any day of the week. I've used it backpacking on a summer day and it has held ice for over 24 hours. Love it! Would recommend for anyone that has had the same milk issue that I no longer have!!!

      Perfect Size

      • Familiarity: I've put it through the wringer

      The 40 oz has become my favorite size because it holds enough water to last you for a while. Won't fit in most cup holders but isnt a pain to carry and your water can stay whatever temperature you like for a long long time

      super durable

        This water bottle does a great job at keeping water cold. I've dropped it a few times and no dents yet. A solid product.

        Kid tested water approved

          I love my hydro flask its my favorite vessel for h20. It is also my 1-year-old son’s favorite tool for banging on the kitchen floor at 6am. As its metallic ring pierces through the sleeping household, I’m reminded how much I Love. My. Hydro Flask.

          Only Hydro flask

            Wherever I am going I need to have my water super cold and nothing is better then the hydro flask!!!


              I got this one as a gift and it looks like it was the best present ever. Amazing feedback!!!!

              Nice bottle

              • Familiarity: I've used it several times

              I really like the esthetics of the bottle and is really comfortable to carry around, it keeps things cold and well is everything I expected

              Twice as Nice

              • Familiarity: I gave it as a gift but have feedback to share

              I love my hydroflask so much that I bought one for my husband who regularly drinks beer on hot days without hydrating. If he does this on his day off, I get home from work and he's tired and cranky - full on no go for the wife. It's no small thing to say that this 40 ouncer may have saved our marriage. He drinks, then he drinks, and he feels great and happy - all because the hydroflask is large capacity, temperature controlled, and easy to sip from (if you get the sippy straw). I think we're going to make it.

              Everybody's Gettin one

              • Familiarity: I've put it through the wringer

              There is a reason it seems like every other person you see is holding a hydroflask.... They are amazing. Keeps your beverages hot for hours or cold for days literally. Ice will stay in these for days. Get one.