Therm-a-Rest Synergy Sleeping Bag Liner

Features of the Therm-a-Rest Synergy Sleeping Bag Liner Comfort minded: Lavish stretch-knit fabric and flatlock perimeter seams create a soft in. base layerin. feel inside your sleeping bag Added warmth: Adds up to 5F/3C of warmth to your sleeping bag or quilt for nights when you need extra protection from the cold Thoughtfully shaped: Designed to Fit in your favorite mummy bag but still feel roomy for an untangled sleep Clean: Helps prevent dirt and body oils from seeping into your bag, allowing you to wash it less and prolong its life