Design and Details

• Comfort minded: Lavish stretch-knit fabric and flatlock perimeter seams create a soft "base layer" 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