These are Montbell stuff sacks. They came with the Storm Cruiser I purchased. It's a set of two, one for the jacket and one for the pants. After purchasing them new, I stored only the stuff sacks at home without using them. They have been stored for a long time, so I'm listing them as "Like New." Although they haven't been used, they are a slightly older type, so I'm offering them at a discounted price as a set. Size (actual measurements) For jacket: 15 x 23 cm, gusset 8 x 8 cm For pants: 13 x 26 cm, gusset 7.5 x 7.5 cm Please refrain from purchasing if you are overly concerned about minor details. Stuff bag Stuff sack Storage bag Gear UL mountaineering