Waterproof stow bag with roll-up closure. PRODUCT DESCRIPTION Waterproof, air-permeable T-Vent Tec 3L base for compression; Waterproof roll-up closure; Measurements: Ø: 22 x 40 cm Volume: 18 l Weight: 70 g Fabric: T-Cover Tex Fabric: T-Vent Tec 3L