The Schnozzel Pumpbag ensures quick, hygienic, moisture-free inflation of EXPED mats, preventing mold development and maximizing insulation (because wet insulation is less effective). It also serves as a waterproof compression drybag to keep your sleeping bag and clothing dry.When combined with the Universal Valve Adapter or the FlatValve Adapter, the Schnozzel Pumpbag can inflate almost any mat or inflatable..