Your perfect travel companion.Keep life moving with the Hydro Flask 21 oz bottle and Standard Flex Cap. It stashes easily into a small shoulder bag, your pack's side pocket, or your car cup holder, and holds enough ice cold goodness to keep you going for hours without weighing you down. No wonder it's one of Hydro Flask's bestselling water bottles. Hydro Flask gear can replace single-use plastics like plastic water bottles and to-go containers.Product Benefits:•Versatile, 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: Hydro Flask guarantees this Hydro Flask product with a limited lifetime warranty against manufacturer defectsSize & Dimensions of 21oz Standard Mouth Bottle:•Volume = 621 mL•Mouth Diameter = 1.91"•Diameter = 2.87"•Height = 9.4"•Weight = 11.3 oz