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The double-wall vacuum insulated Hydro Flask 21 oz Standard Mouth bottle keeps contents cold for 24 hours or hot for up to 12 hours. Constructed of food-grade 18/8 stainless steel, the Standard Mouth bottle is BPA-free, rugged and lightweight.
Thanks to patent-pending double-wall construction, the outside of the bottle isn’t affected by the temperature of the contents, so cold beverages won’t cause sweat on the outside of the bottle, and hot liquid won’t cause you to burn your hands. The stainless steel interior also prevents flavors from lingering.
Backed by Hydro Flask's unconditional lifetime warranty, the Hydro Flask 21 oz Standard Mouth bottle is available in your choice of colors.
- Weight: 10.4 oz.
- Bottle height (w/cap): 10.56 in.
- Double-wall vacuum insulated
- High quality, food grade 18/8 stainless steel
- BPA free
- Eco-friendly and reusable
- Sweat free
- Outside stays cool to the touch
- Hot liquids stay hot for 12 hours
- Cold liquids stay cold for 24 hours
- Lifetime warranty
Best Use Backpacking, Camping, Hiking
Likes: This is a nicely made flask and I'm sure it would work great.
Dislikes: The narrow mouth seems to narrow. I returned for the 18oz. wide mouth.