ALPS Mountaineering Cyclone Stuff Sack Three straps compress diameter and additional single strap compresses length Additional bartacked stress points ensures long-lasting use Lightweight, yet durable polyester ripstop fabric Whether you need a stuff sack for your sleeping bag or storing other items, our ALPS Mountaineering Cyclone Stuff Sack has you covered Dimensions: 10" x 12", Capacity: 27L/1649 in