Gear Montbell Synthetic Insulation Bags | Seamless Alpine Burrow Bag Thermal Sheet Gm (Gunmetal)

Delivering Versatile Use As A Sleeping Bag Liner And On Its Own As A Lightweight Sleeping Bag, Its Seamless Design Maximizes Heat Retention By Allowing The Insulation To Loft Fully, While The Airtight Outer Surface Efficiently Holds Your Warmth. The Inside Features The Spiral Stretch System That Orientates The Fabric And Stitches Diagonally To Promote A Horizontal Stretch Which Gently Cocoons Your Body Without Feeling Restrictive.