Exped waterproof compression bag ultralight 19l ultralight and waterproof compressionbag with fold n closure light weight cords replace compression straps a counter grip on the base makes it easier to pull out the compressed contents the 3 side compression cords reduce the volume of contents effectively double seams lightweight closure and buckles round off this compression featherweight material pu coated and siliconized 15 denier ripstop nylon size closed