Once the air is out between shirts, shirts and laundry, there is more space in the suitcase or backpack for other things. The trick: an additional compression zipper reduces the volume to just a third. This saves space and creates order. Nothing creases, nothing slips, everything lies firmly and securely in its place. In three practical sizes: L for shirts & pants, M for shirts and S for socks & underwear. Each with mesh window and carrying handle, made from recycled marine plastic (100% rPET), dark gray