The Outwell Cotton Sleeping Bag Liner – Double is designed to keep your sleeping bag clean and extend its lifespan. Made from breathable cotton, this liner adds an extra layer of comfort while reducing the need for frequent washing of your main sleeping bag. Installation is straightforward thanks to snap button fixing straps that thread through attachment loops positioned at each corner of the bag. Simply snap into place before use and detach just as easily when you're done. This liner fits all Outwell rectangular sleeping bags, making it a versatile addition to your camping kit. The only exception is the Contour XL model, which requires a different size. Perfect for hygiene-conscious campers or those looking to protect their investment, this cotton liner is an essential companion for any sleeping bag.