Outbound Comfort Liner Outbound Comfort Liner is a cozy polyester fleece bag, ideal as a liner inside rectangular sleeping bags Full length two-way zipper Includes a Polyester stuff sack Dimensions: 74 L x 31" W (188 x 80 cm); fits a person up to 5'10" (1.55 m) Can be used on its own to keep you comfortable in temperatures as low as 50 degrees Fahrenheit Adds up to 12 degrees F of extra thermal protection to most full-sized sleeping bags ZipPlow system plows away fabric to prevent snagging during zipping Elastic storage strap and stuff sack for easy packing