DESC: Design Features Integrated pad sleeve. Never roll off your pad again Extra 2" of girth in hip area Extra insulation in foot and core areas Extra 2" of length in the foot box of the petite size accommodates up to 5'8" Petite length requires a 20" x 66" pad YKK #8 zipper. Mate together any of our left and right zip bags with the same size zipper. Petite has a 60" zipper and the regular has a 70" zipper. Rectangular shape offers more room in foot box and shoulders Cotton storage sack & nylon stuff sack included Built in pillow pocket holds a fleece or Big Agnes Pillow No-draft yoke 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 Interior fabric loops for sleeping bag liners