Waterproof compression bag with purge valve and horizontal compression straps. Use this lightweight bag to easily and quickly compress sleeping bags or clothing. Adjustable straps compress the bag horizontally to the desired volume. Slim shape lashes easily to the side of a backpack. The waterproof compression bag is easy to handle with quick release buckle on the roll-top closure, counter grip at base and the flat purge valve to expel air. Ideal when additional space is needed in the pack. Can be used as Exped mat inflation aid in combination with a Schnozzel (not included).