The Adaptor COOLMAX® sleeping bag liner will help you adapt to varying temperatures and humidity. The washable, knitted COOLMAX® fabric wicks moisture away from your skin, which helps keep you comfortable as temperatures rise and humidity increases, guaranteeing a great night’s sleep. The COOLMAX® Adaptor liner is ideal for use on its own in warm, humid climates, or as a liner inside your sleeping bag as you transition across seasons, and it s great for keeping your sleeping bag clean and hygienic. It s also available in an Insect Shield® version for extra protection in buggy environments.