Keep hydrated on the trail, on your fishing boat and on any adventure with the ALPS OutdoorZ Reservoir 3.0. Drinking water from it is simple. Just twist it open for no-bite, full-flow functionality. Revolutionary articulating bite valve and built-in check valve eliminate backwash and prevent air from entering the tube. The Reservoir 3.0 features a 2-cap design. Use the larger one for cleaning it out and the smaller one for filling it back up. The quick-connect device lets you easily disconnect the drink tube from the reservoir without leaking for easy refilling and cleaning. You'll also appreciate the insulated drink tube, which means it won't freeze up while on cold-weather adventures. Drink tube clip rotates 360 degrees. Anti-microbial IonPure treatment prevents bacteria and mold growth. BPA- and PVC-free design. 3-liter Reservoir with revolutionary articulating bite valve No biting required; just twist open for full water flow Built-in check valve eliminates backwash and prevents air from entering tube Anti-microbial IonPure treatment helps prevent bacteria and mold growth 2-cap design; large opening for cleaning and smaller opening for filling Use quick-connect device to disconnect drink tube from reservoir for easy refilling and cleaning Insulated drink tube for use in extremely cold weather Drink tube clip rotates 360 degrees BPA- and PVC-free Order today!