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Details & care
Perfect for the trail, the beach or everyday use, this large-capacity bottle is a hydration must-have. The wide mouth makes refills a breeze and the flexible straw makes sipping simple. TempShield™ protection keeps all your beverages the perfect temperature—hot or cold—for an extended period of time.
- 12" x 3.5"
- 1 lb.
- Holds 40 oz.
- TempShield insulation
- Keeps liquids hot for up to 6 hours and cold for up to 24
- BPA- and phthalate-free
- Wide mouth opening is ice-cube friendly; compatible with most backcountry water fillers
- Leakproof cap
- 18/10 stainless steel/polypropylene lid
- Dishwasher safe
- Imported
- Item #10553303
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Hydro Flask
Headquartered in Bend, Oregon, Hydro Flask launched the first all-insulated bottle in 2009 and has spent the last 10 years delivering on its commitment to save the world from lukewarm.
Most helpful positive review
May 7, 2026
Great flask
[This review was collected as part of a promotion.] My kids won’t drink water unless it’s in a Hydro Flask
Linda S.
Reposted from hydroflask.com
Most helpful critical review
Mar 30, 2026
Not the best water bottles
[This review was collected as part of a promotion.] I’m very disappointed in this product. Bought one for me and my daughter and when you use it it leaks down the front of you. .
Jackie F.
Reposted from hydroflask.com
5 stars
71%
4 stars
8%
3 stars
9%
2 stars
6%
1 star
6%
Sort by Most Helpful
Linda S.
Reposted from hydroflask.com
May 7, 2026
Great flask
[This review was collected as part of a promotion.] My kids won’t drink water unless it’s in a Hydro Flask
Marc P.
Reposted from hydroflask.com
May 7, 2026
Perfect for indoor lap swimming
I swim 2-3x per week for about an hour at an indoor pool and I really needed a water bottle large to hold enough water for me to not need to get out of the pool to refill. This bottle has been perfect for that; I can fill up with cold water and it stays cold for the entire time (I was using an BPA-free plastic bottle and the water would get warm after a while) and the straw also helps with taking smaller pulls of water so that I don't overdrink either. Highly recommend
Jenna B.
Reposted from hydroflask.com
May 6, 2026
Son loves it
[This review was collected as part of a promotion.] My son loves it! He just wished he didn’t need the internal straw.
Patricia N.
Reposted from hydroflask.com
May 4, 2026
Size matters
[This review was collected as part of a promotion.] I purchased 2 of the 40oz Hydro Flask and love it and so does my husband. I hiked 5 miles last weekend in the desert and it was just enough to carry me through. I chose this company because they support SaveUSFS. org and they have excellent products.
Julie O.
Reposted from hydroflask.com
May 2, 2026
Love our bottle!
[This review was collected as part of a promotion.] This is a perfect size for being out and about. We leave it in our car while doing errands or day trips and we know when we get back to the car we get to have a nice cool drink. It’s a bit heavy to carry with us at times (will have to think about getting the new micro sized ones). Love that Hydroflask thought of making small sized bottles with the same insulating properties. These bottles takes a beating cuz we use them nearly everyday and they hold up really well.
Shawn S.
Reposted from hydroflask.com
Apr 30, 2026
Great purchase
[This review was collected as part of a promotion.] I love the product. Keeps items cold for a long period of time even without adding ice. If the item is previously chilled. Would definitely purchase again