'Hydrapak’s unique Reversible Reservoir II™ drink system incorporates the easy on, easy off, Slide Seal. The plastic slider forms a complete seal over the folded reservoir top. The reservoir can be turned inside out for complete cleaning and drying. The wide mouth makes adding ice cubes and sport mixes a breeze. The reservoir is constructed of FDA approved durable polyurethane – strong enough that it can be stretched many times its original length without failing.
