This Marmot Arroyo ultra-lightweight mummy bag features thermally efficient 800-fill-power goose down, compressing into a tiny package for three-season backpacking. FILL. 800-fill goose down. WEIGHT. Long - Left Zip: 36 ounces. Regular - Left Zip: 27 ounces. Regular - Right Zip: 27 ounces. TEMPERATURE RATING (F). 30 degrees (F)

• Water-repellent, windproof, downproof nylon microfiber shell is ultralight, yet strong
• Ground-level side seams prevent cold air leaks and allow the goose down insulation to loft fully
• 6-Baffle Hood envelops your head in warmth; Face Muff allows hood to be cinched snug without digging into your face
• Down-filled draft tube backing full-length, locking zipper prevents cold spots
• Trapezoidal footbox allows down to loft fully around your feet for optimum warmth and comfort
• Stretch tricot baffles provide strength and durability for long bag life
• Comes with stuff sack and storage bag