When you need to compress volume without significantly adding weight, the Ultra-Sil Compression Sack is an excellent solution. Made from a water-resistant, bluesign approved Ultra-Sil 30D nylon fabric with Non-PFAS DWR this compression sack is far tougher than its weight would suggest. Ideal for use inside your pack or travel bag when you need to compress clothing or bulky soft items to allow space for other essentials or fun holiday items. FeaturesCompress contents down by as much as two thirdsWater-resistant, bluesign APPROVED Ultra-Sil 30D nylon fabric with a C0 non-PFAS DWR finishAchieve even compression and eliminate bulging with ultralight compression straps - the 5L and 8L include two ladderlock straps and one side-release buckle strap while the 13L and 20L include two ladderlock straps and two side-release buckle straps for maximum compression control on larger loads.Attached flip-top lid prevents straps tangling