Cocoon Thermal Liner - Mummy

REI

Not too hot, not too cold—you'll be just right when you swaddle yourself in the supreme comfort of this toasty Cocoon sleeping bag liner.

• ThermaLiner helps regulate sleeping temperature and moisture, allowing you to have a comfortable night's sleep
• CoolMax® fabric wicks away moisture while Outlast® technology absorbs, stores and releases heat as needed
• Adds 12°F warmth to the temperature rating of your sleeping bag
• Keeps your sleeping bag clean and extends the life of your bag
• Width tapers from 35 in. at the shoulder to 22 in. at the foot
• Wash by hand or machine wash on gentle with mild soap