Hydro Flask 40 oz Lightweight Wide Mouth Trail Series Water Bottle

Fulfilled by our friends at Klymit

• Body Mapping Technology: Our patented V-shaped design delivers support and comfort no matter how you sleep ‘ on your side, stomach or back.
• Side Rails: Integrated into the patterning and construction, they provide a secure, comfortable sleep by centering you on the pad and inhibiting air movement while tossing and turning.
• Deep Weld Patterning: Unlike traditional pads that flatten the bag’s fill, Deep Welds create expansion zones that allow your bag to fully loft beneath you for improved thermal comfort.