Big Agnes Lulu 15 Degree Regular Sleeping Bag Synthetic Insulation: INTEGRITY: Short Staple synthetic insulation with 97% recycled content. Integrated full pad sleeve. Never roll off your pad again. Petite length requires a 20" x 66" pad. Rectangular shape offers more room in foot box and shoulders Extra 2" of girth in hip area. Extra insulation in foot and core areas. Extra insulation in foot and core areas. Insotect Tubic is a revolutionary tubular insulation system engineered to provide the maximum cubic loft for supreme thermal efficiency and user comfort No-draft collar seals around neck to keep cold air from sneaking in. No-draft wedge insulates the connection between the bag and pad. No-draft zipper tube insulates along the length of the zipper Built in pillow pocket holds a fleece or Big Anges pillow. Interior fabric loops for sleeping bag liners. Mesh storage sack & nylon stuff sack included. YKK #8 zipper. Mate together any of BA's left & right zip bags with the same size zipper. Size petite mates to bags with 60" YKK #8 zippers. Size regular mates to bags with 70" YKK #8 zippers PETITE fits up to 5'6". REGULAR fits up to 5'10". Bag Weight: Petite- 3lbs 5 oz , Reg - 3lbs 10oz . Fill Weight: Petite - 24 oz , Reg - 26 oz. Compressed Size: Petite - 9" x 8.5", Reg - 9" x 9". Stuff Sack Size: Petite - 9" x 20", Reg - 9" x 20". Shoulder Girth: Petite - 68". Long - 70". Hip Girth: Reg - 66". Reg - 68". Foot Girth: Reg - 54". Long - 54"