Stuff Sacks by Osprey

Pack sacks or compression bags bring protection, order and space savings. Clothing, equipment or even your sleeping bag are protected from dirt and moisture and at the same time stowed as compressed as possible. In addition, you create more order and clarity in your backpack. However, there are also storage bags made of mesh material, which only serve to keep things tidy and do not provide protection against moisture. These are recommended for longer storage of a sleeping bag, for example, as the latter should never be stored compressed for too long.