The Cocoon Thermolite Performer Mummy Liner is a mummy model sleeping bag liner made of Thermolite. Thermolite is warm and comfortable at a very low weight, even when wet. The hollow fibres totally encase air and therefore the material also isolates in wet conditions. Thermolite dries 20% faster than other synthetic materials and 50% faster than cotton. Moisture is quickly transported to the surface where it quickly evaporates. Thermolite is therefore a good choice in wet conditions. The Cocoon Thermolite Performer adds 7 degrees to your sleeping bag.
The head has a hood so your pillow doesn’t slide away, or you can tighten the sleeping bag liner around your head for extra warmth. The side opening has a velcro fastening. The seams are double stitched and the broad opening is reinforced. The square foot end provides more freedom of movement.
If you’re looking for a sleeping bag liner to make your sleeping bag warmer, or if your sleeping bag liner can get wet, a Thermolite sleeping bag liner is the right choice.