Water-resistant compression bag made of nylon Cordura® ripstop fabric with high strength and durability. The outer side of the fabric with a silicone layer and the PU layer on the inner side guarantee the waterproofness of the ultra light bag. In addition, the translucent fabric helps identify things inside the bag. Thanks to the compression belt, the bag economically compresses bulky equipment, which could take up a lot of space in the backpack, such as clothes and a sleeping bag, which you also want to keep dry. Made in 8 sizes. Ultra light 30D siliconized Cordura® fabric. Polyurethane (PU) waterproof coating. Completely taped seams. You just need to tangle the compression belt 3 times and fasten it with a buckle.