For maximum warmth on winter outings, this cold-weather sleeping bag has thermally zoned insulation to put extra warmth where you need it most around your core and your feet. FILL. Thermal.Q synthetic fibers. WEIGHT. Long - Left Zip: 4 lbs. 4 oz. ounces. Regular - Left Zip: 3 lbs. 15 oz. ounces. COMPRESSED VOLUME. Long - Left Zip: 11.1 liters. Regular - Left Zip: 10.25 liters. TEMPERATURE RATING (F). 5 degrees (F)

• Unique welded construction reduces weight and bulk, maximizes insulation loft, eliminates cold spots and thermally maps insulation to areas where warmth is needed most
• Thermal.Q insulation has outstanding compressibility, maintains excellent loft and continues to insulate even when damp
• Comfort mummy cut maximizes warmth and fit while minimizing weight
• Ergonomic draft collar and tailored hood with face gasket comfortably block drafts and seal in warmth
• Comfort footbox follows natural foot position for maximum warmth and comfort
• Soft polyester lining wicks away moisture and lightweight nylon shell has a durable water repellent finish to ward off moisture
• Full-length #5 zipper with double sliders for versatile ventilation
• Zippered pocket at shoulder
• Nylon compression stuff sack and mesh storage bag included
• 5°F EN (European Norm) lower-limit rating is suitable for 4-season use