40 oz Wide Mouth with Flex Straw Cap Color:White The JetFlow design is wind-tunnel

The JetFlow design is wind-tunnel tested to reduce drag for less wind noise and better fuel economy

it's the kind of hat you'll always have hanging by your front door or in the back of your truck

A water-resistant finish and reliable sun protection extend the outdoor adventure

Includes stainless steel precision pulleys

40 oz Wide Mouth with Flex Straw Cap Color:White The JetFlow design is wind-tunnelFlip it and sip it. Flip it and sip it with the Hydro Flask 40 oz Wide Mouth Bottle With Flex Straw Cap. With a comfortable flexible handle the closeable leakproof straw cap is easy to open and close with one hand for on demand hydration.