The XKG Summit 20 Degree Mummy Bag is our lightest high-performing sleeping bag. This super lightweight bag has a carry weight under 3 pounds and is ultra compact - giving you more room in your pack. Over-sized 84" x 32" Thermolite Insulation - 1.9 lbs. fill Drawstring Closure 20D 380T Poly Liner Chest & Shoulder Baffle Full Length YKK Zipper Lightweight Carry Weight - 2.6 lbs. External Chest Pocket 20D Poly Ripstop Shell Lightweight Compression Bag (Included) Prop 65 WARNING for California