Hydro Flask

40oz Wide Mouth Bottle

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Drench your thirst. This is one of the largest bottles we sell, making it the ideal hydration companion for those long, hard days in the office or out on the trail. Stay cool all day long, no matter where your adventures take you. For obvious reasons, it’s among our best sellers.

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Product Details

Hydro Flask bottles were developed to not only withstand the toughest environments, but excel in them as well. Each bottle features double wall vacuum insulated, food grade, 18/8 stainless steel. The tech is BPA free, resistant to bacteria and odors, and keeps hot contents hot for 6 hours and cold contents cold for a full 24. Here’s another great trick: The bottle resists condensation, and doesn’t sweat and soak the rest of your belongings.

Don’t accept any knock offs. At the neck of every Narrow Mouth and Standard Mouth Hydro Flask is the iconic silver ring, so you know you’re using the very best in portable hydration bottles.


  • TempShield Protected 
  • Keeps cold up to 24 hours 
  • Keeps hot up to 6 hours 
  • 18/8 Pro Grade Stainless Steel 
  • BPA-Free 
  • Durable, sweat-free powder coat finish (or our Classic Stainless option) 
  • Lifetime Warranty 
  • Industry-standard wide mouth opening fits many third-party water filters 
  • Compatible with Wide Flat Cap, Hydro Flip Lid and Wide Straw Lid