Description of Mountain Hardwear Ultrlamina 32° Sleeping Bag Welded, with new ThermicMicro™ for outstanding compressibility and durability, the UltraLamina is an excellent choice for damp, cool conditions. Consistently dense insulation maintains loft through repeated washings and compression cycles. Dual side zips allow the user to sit up and read or cook while staying inside the bag. Features: Insulation Thermic Micro™ Temp. rating 32 F / 0 C Lining 20D Nylon Taffeta Shell Fabric 20D Micro Ripstop Nylon Weight 1 lbs, 14 oz / 870.00 g Loft 3.10 in / 7.87 cm Stuffed diameter 6.50 in / 16.51 cm Stuffed length 10.00 in / 25.40 cm Fill weight 1 lbs, 2 oz / 510.30 g Inside length 78.00 in / 198.12 cm Shoulder girth 60.00 in / 152.40 cm Foot girth 38.00 in / 96.52 cm Performance mummy cut is snug, reducing girth, weight, and bulk and maximizing thermal efficiency Patent pending, welded Lamina™ construction enhances loft and eliminates cold spots Ultralight shell is soft and highly wind resistant Thermic Micro™ fill is soft, lofty, compressible and durable Dual #5 zippers minimize weight and provide ventilation options Comfort Footbox follows natural foot position for maximum warmth and comfort Face gasket and tailored hood comfortably block drafts at the hood opening and seal in warmth Internal zippered pocket at shoulder for storage Nylon mesh bag and storage sack included