Sea To Summit Adaptor Coolmax Mummy Liner For a superb night's sleep in hot climates, the Coolmax Adaptor is a perfect choice. The most versatile model in the Liner range, the Coolmax Adaptor has a soft and luxurious finish, for ultra comfort. Coolmax is an exceptional technology present through the construction of this sleeping bag. This liner is perfect at adapting to varying temperatures and humidity, for the most comfortable sleep, and a versatile sleep system means you can use it by itself, or even as part of a layered system. The excellent technologies work to remove moisture from the surface of your skin, helping you to remain dry and comfortable when you're asleep. Additionally, the stretchy fabrics ensure you can move freely whilst inside the liner, and a mummy shape means a more perfect fit is provided. The product also comes with an Ultra-Sil stuff sack, a durable, abrasive resistant fabric that will allow you to easily store it away, whilst also preventing