Pump and waterproof compression bag in one. The Schnozzel Pumpbag allows swift inflation of Exped mats in 2-3 compressions. It has a volume of 42 liters (2563 cu.in.). For older mats with 30 mm instead of 20 mm valves use FlatValve adapter. Product contents: Schnozzel Pumpbag, Reusable plastic zip-bag packaging. Materials: Top: 15 D Ripstop Nylon, Silicone/PU coated, 1500 mm water column; Bottom: 15 D Ripstop Nylon, Silicone/PU coated, 1500 mm water column; 20 D Polyester, TPU Polyether Film Laminate, Hydrolysis resistant, Honeycomb embossed.