With its squeeze design, and hands free open and close valve, the Ogov water bottle is perfect for hydration on the trail.Always rise with warm water and mild soap after each use.Do not scrub the bottle with abrasive materials or use a brush to clean it.Dishwasher safe (place on top rack only).Capacity: 20 oz. / 600 ml.Material Composition100% FDA food-grade materials (100% Low Density Polypropylene (LDPE)) printed with a non-solvent base. BPA-free plastic.