The Outbound active light range of mummy and rectangular bags is designed to offer maximum performance with minimum weight and bulk. On the mummy bags, the zippers are extended around the bottom of the foot box to allow additional venting. The Quadratherm® Plus insulation provides superior warmth to weight, is extremely durable and can be machine washed. The pongee linings provide superb comfort and also wick moisture effectively. Compression stuff sacks included.