HydroFlask Standard Mouth Water Bottle with Flex Cap 21 oz - Black canteens while the contoured cork-and-latex footbed

while the contoured cork-and-latex footbed and anatomically shaped heel cup cradle your foot for hours of walking comfort

Flex easier

and hello to the perfect fit and protection

Arch Pain & Arch Strain

with Inverted MONOWRAP® frame construction and a hybrid DynaPU®/DuraPU® midsole for superb support

HydroFlask Standard Mouth Water Bottle with Flex Cap 21 oz - Black canteens while the contoured cork-and-latex footbedVersatile, middle of the road size TempShield insulation eliminates condensation and keeps beverages cold up to 24 hours and hot up to 12 hours Durable 18 8 Pro Grade Stainless Steel construction BPA Free and Phthalate Free Compatible with Standard Mouth Insulated Sport Cap Lifetime Warranty