The Hydro Flask 40 oz Wide Mouth stainless steel water bottle is made for serious hydration and liquid storage. The 40 oz water bottle will keep you hydrated through an intense workout or a long day in the office. The larger mouth opening makes the 40 oz a great option for mixing sports drinks or storing smoothies.
There is a double wall vacuum insulation ensuring that cold liquids will stay cold for up to 24 hours while hot liquids remain hot for up to 12 hours.
The 18/8 food-grade stainless steel interior is non-porous, meaning no residual bacteria buildup and no hints of yesterday's beverage.
Our insulated Wide Mouth Flat Cap further protects your liquid cargo from the elements, and is made from 100% recyclable BPA-free PP#5.
Backed by a lifetime warranty.