The Mountain Hardwear Mountain Speed sleeping bag has lightweight fabrics and water-repellent down insulation a great choice for alpinist and backpackers spending nights in damp, cool climes. FILL. 850-fill goose down. WEIGHT. Long - Left Zip: 1 lb. 1 oz. Regular - Left Zip: 1 pound. TEMPERATURE RATING (F). 32 degrees (F)

• Q.Shield advance water repellency technology protects individual down fibers from moisture so they retain loft and insulation properties; Q.Shield won't wear off
• Insulated with lightweight and compressible Q.Shield 850-fill-power goose down, blended and lab-certified in the United States
• Performance mummy cut features a snug overall fit that positions the down insulation close to the body, maximizing warmth and minimizing weight without restrictiveness
• Nylon shell is lightweight and tear resistant; fabric is treated with a Durable Water Repellent finish to repel moisture
• Tight 5-in. baffle spacing keeps down from shifting and prevents cold spots
• Insulated draft tube extends to bottom of bag to eliminate cold spots
• Multi-baffled, tailored hood lies close along the sides of neck and face for easy warmth
• Ergonomic collar drapes comfortably over neck and shoulders, sealing out drafts; no need to cinch it unless it's close to bag's temperature limits
• When it's cold enough to cinch down hood, face gasket makes hood closure more comfortable and effective
• Comfort footbox is shaped to allow feet to rest naturally; shape preserves loft and allows insulation to drape close to feet for more warmth
• Half-length zipper enhances weight savings; snag guards keep fabric from catching in zipper
• Mountain Hardwear Mountain Speed sleeping bag comes with a stuff sack and a storage bag