Asolo Gear Marco 40 Degree Ultra Light Mummy Sleeping Bag (Navy/Deep Red) 100% Polyester/ Lining 100% Polyester / Shell 100% Polyester Imported High-performance ultra-light mummy sleeping bag rated for 40 degrees Fahrenheit Quadratherm Spiral Insulation offers superior loft and is ultra-compactable Thermal collar and draft tube preserve interior warmth; convenient inside Velcro pocket 1.47-pound total bag weight; comes with lightweight compression stuff sack Warranted against defects for the product lifetime