With innovative, interchangeable layers, The North Face Dolomite One sleeping bag functions like 3 bags in 1, letting you comfortably catch some zzzzzzs outdoors in a wide range of temperatures. DETAILS Style: NF0A3S8O Total Weight: Reg - 5 Lbs. (2262 G) / Long - 5 Lbs. 13 Oz (2623 G) Temp Rating: 15AdegF, 30AdegF, 50AdegF Stuffsack Size: 11" X 20" (27.9 Cm X 50.8 Cm) Shell: 50D Cire Polyester Taffeta Comfort Lining: 100% Polyester Insulation: 30% Recycled Polyester Cut-Staple FEATURES Top layer features 50-degree-rated Heatseeker(TM) Eco synthetic insulation for versatile use in warmer weather Mid layer features 30-degree-rated Heatseeker(TM) Eco synthetic insulation for cool nights in the outdoors The two layers can be paired to get a 15-degree bag for maximum versatility Zippers open from the bottom to allow for extra ventilation Watch pocket included Rectangular shape is super roomy for the ultimate comfortable experience Comfort fleece liner on the mid layer is super soft and makes you want to slide right in