Hydro Flask 21 OZ STANDARD FLEX STRAW CAP size-v combined with ordinary movement throughout

combined with ordinary movement throughout the day

New color updates from fall 2013

Narrow Width

did they tell you that you lose most of your body heat through your head

Hydro Flask 21 OZ STANDARD FLEX STRAW CAP size-v combined with ordinary movement throughoutMore hydration for more fun with the leakproof, Flex Straw Cap. The 21 oz Standard Mouth with Flex Straw Cap is just the right size for staying hydrated before, during and after activity. Beverages stay cold for 24 hours and hot for up to 12. The Flex Straw Cap is leakproof and makes it easy to sip on the move. Features: Flex Straw Cap makes cold refreshment that much easier Flex Straw Cap is leakproof when closed, to transport without worry Flex