SEA TO SUMMIT EVENT COMPRESSION DRY SACK - 14LThis valve-free compression dry sack uses a breathable base made of eVent(TM) waterproof fabric that allows air to be pushed out, but keeps water from entering.FEATURESWaterproof and air-permeable eVent base; sides made of 70-denier nylon fabric with reinforced stitching on all stress points for durabilityPolyurethane coating offers the ultimate in waterproofness; waterproof seams are tape sealed and double-stitched for added weather protectionRoll-top hypalon closure with lid and 4 straps evenly compress and maintain compressed sizeCompact and lightweight design; features a pull handle on bottom for easy transportTECH SPECSDimensions: 8 x 18 inchesWeight: 5.2 ozClosure: Roll-topCompression Straps: YesWaterproofMaterial(s): Body: PU-coated 70-denier nylon; Base: 40-denier nylon with eVent laminate