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Hydro Flask 40oz Wide Mouth Water Bottle

Hydro Flask 40oz Wide Mouth Water Bottle

Item # HYF0017

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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:

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What can you say

  • Familiarity: I've put it through the wringer

Industry standard water bottles at this point. Everyone knows hydroflask keeps it hot or cold and are super durable. Great gifts, great for yourself.

My favorite water bottle company

  • Familiarity: I've put it through the wringer

The 40 oz bottle is perfect, especially if you like hot yoga. Nothing like ice cold water when you are dying from the heat in your Bikram studio. Just make sure you drink the water and not pour it down your front side.

Excels at Hot or Cold

  • Familiarity: I've put it through the wringer

I have multiple hydro flasks under 32oz but finally took the plunge on the 40ozer when I wanted something to keep at my desk or take on long trips. It is an absolute tank - great color quality and super solid construction. I find that if I fill it with water and some ice early in the morning I’ll still have ice in there by end of day and before bed. Same goes for hot beverages - will keep 40oz of coffee hot for at least 6-8 hours.

I use it the most for water but it’s also fantastic for iced coffee or tea as it keeps them so cold it stops the drink from becoming watered down.

Can't beat it!

  • Familiarity: I've used it several times

I had to give one of these a try to see what the hype was all about and sure enough, I can see why people love Hydro Flask. They keep things soooo cold for hours, which is perfect when you're out in the sun and need a cold drink. Absolutely stoked on this purchase!

Only the Best

    Nowadays everyone knows about vacuum insulation, Well Hydro Flask was one of the first to come out with this technology and they have done it right from day one. Super durable and overall just awesome! Hydro Flask is a great company based out of Bend, OR.

    Only the Best

    Best water bottle in the game!

    • Familiarity: I've put it through the wringer

    Hands down my favorite water bottle I've ever bought. They can be a little spendy, but they last for ever and do a great job at keeping your water cold and ice cubes frozen (even when it's 100 degrees out) ! They can be a little on the heavy side, but totally worth it!

    Liked it so much I bought another

      I own two Hydro Flasks - one 20 oz & one 40 oz - and I liked the 40 oz one so much I just ordered another in Mango (from However, it hasn't arrived yet so it remains to be seen what condition it will be in and how well-packed it will be. The only caveat I have about Hydro Flasks is that they dent rather easily so this time I made sure to purchase a silicon protective sleeve. The first 40 oz I ordered (stainless steel color) was also purchased from backcountry and arrived in good condition so I anticipate no problems but you never know. These things are great for keeping my filtered ice water cold for up to 2-3 days in winter and about 24 hours in summer. Can't ask for more.

      Can't get enough

      • Familiarity: I've put it through the wringer

      It is a bit of investment if you are paying full price but the Hydroflask bottles never disappoint! Any time I see a sale I jump on it, they make the absolute best gifts! Every person I have purchased them for raves about them and wants more. They tend to get dented up over time as I am a naturally clumsy person but the insulation lasts through it all!

      40oz's of Heaven

      • Familiarity: I've put it through the wringer

      Hydroflask is my go to insulated bottle. I have a few different sizes and they never appoint. The 40 oz is my go to everyday water bottle. It gives me a great amount of water without needing to fill it up too often. In mid summer you can put ice in it and it will be cold when you get home at night.

      Cold Water All Day Long

      • Familiarity: I've put it through the wringer

      My favorite to grab and go water container. Fill with ice, cold water, and stays cold for hours. No more plastic, this is the way to go. Great colors. And, as always, a fantastic gift...share the love for your friend and for the planet. Loop handle lid (easy carry when on crutches) or straw lid for a quick sip. I have and use both.

      Good deal

      • Familiarity: I've put it through the wringer

      I always wanted one and I caught the 40 oz on sale I love it I'm getting my mom one

      Good deal

      Can't Leave Home without It

      • Familiarity: I've used it several times

      Highly recommend this water bottle! Keeps my water cold on long hikes or even at work. I also really love how this doesn't sweat water everywhere either!

      The real deal.

      • Familiarity: I've put it through the wringer

      I own many water bottles but my Hydro Flasks are always the first ones I reach for. I really like the new lid, it is more durable than the last generation. The 40 oz. size is great for long days outside.

      The Only Way to Go

      • Familiarity: I've put it through the wringer

      Hydroflask sets the bar. These bottle last forever, they come in awesome colors, and they'll keep that contents the hot or cold for days at time. If you're not rolling with Hydroflask, you're doing it wrong.

      Nice water bottle

        I recieved my hydro flask today and love it. I love the color it’s pretty. This is exactly what I was looking for to use everyday . And fast shipping. Thank you.

        Great bottle!

          I ordered on a Wednesday afternoon, got to my house on Friday afternoon. Very fast shipping. Amazing bottle. I put ice water in it on Friday night at 6:00 pm and I woke up the next morning around 10:30 and it still had its ice. Perfect. The price is much cheaper on this site then

          Unanswered Question

          How much does this weigh?

          These Bottles are Fantastic

          • Familiarity: I've put it through the wringer

          They come in nice colors, are totally bombproof, and keep your hot hot and your cold cold for a looong time. Almost too long honestly, but thats a good problem to have!