MummyLiner™ Cotton Flannel

Adds up to 12.1 °F degrees to a sleeping bag Wide top opening for easy entry and exit, ensuring hassle-free use and convenience. Contoured foot end designed to perfectly match the shape of your sleeping bag, ensuring maximum comfort and insulation. Double-stitched throughout for exceptional durability, ensuring your sleeping bag liner withstands the rigors of outdoor adventures. Flannel is brushed, especially soft and warm cotton.  It adds more insulation than regular cotton and is perfect for cold places or to replace a sleeping bag in warm weather. .responsive-video-container video { max-width: 100%; height: auto; display: block; }