Klymit Nest Sleeping Bag Liner Hot Weather Cooling fabric that increases the cleanliness of your sleeping bag Bamboo fabric, cooling sleeping bag liner for hot weather An extra layer of comfort for your sleep experience. The Nest™ sleeping bag liner features bamboo, cooling fabric that increases the cleanliness of your sleeping bag. Cozy with plenty of room for stretching, the liner is designed with quarter length openings with velcro closures for easy entry and exit. Stop washing your sleeping bag, simply wash the liner for a fresh and clean night's rest. Klymit Nest Sleeping Bag Liner Hot Weather