FeaturesTaste & odor-resistant material is used for the tube interior to keep water refreshingValve provides steady flow to optimize hydrationCap helps keep valve clean and dust-freeSoft and supple tube is easy to handle
SpecsMaterialTube: TPE (outside), polypropylene (inside) Valve: silicon rubber, polyethyleneWeight55 gWeight (oz)1.9 ozOtherHeat resistance: 70°C / 158°F Cold resistance: -20°C / -4°FCountry of OriginCHINA