Built to explore the last frontier the lightweight Therm-a-Rest Space Cowboy 45 Sleeping Bag is a favourite for summer backpackers and cowboy campers The feather-weight Space Cowboy is built with eraLoft synthetic insulation to endure the rigors of backpacking and cowboy camping in variable conditions Designed with innovative Therm-a-Rest features like SynergyLink Connectors and Zoned Insulation the bag is among the lightest and most packable in its class The mummy-style bag compresses down to take up minimal room in your pack Whether exploring the western frontier bike packing through the desert or wandering through the wild the Space Cowboy has you covered Storage sack and compression stuff sack included