The Everest Comfort was specifically designed for outdoor enthusiasts who want more leg room along with the performance of a cold-weather sleeping bag. Chinook uses Invista Thermolite insulation to create this roomy and comfortable sleeping bag. Great for trips in the late autumn or early spring, when the temperature is still below the freezing point. Thermolite by Invista delivers maximum lightweight warmth in extreme conditions. Specifications: - Color: Dark Cyan/Navy - Temperature Rating: 15F / -10C - Size: (80" + 12") x 34" - Shape: Hooded rectangular - Construction: Two layer - Outer Shell: Soft ripstop nylon - Lining: Polyester taffeta - Filling: 1.5 lbs. of Invista Thermolite Hollofil - Zipper: #5 YKK 2-way - Stuff Sack: 4-way compression bag - Total Weight: 4.4 lbs.