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  • Premium 725-fill-power duck down is warm, lightweight and compressible
  • Downproof and wind-resistant, the densely woven synthetic shell is light, compressible and tough; silky soft lining is also downproof and highly breathable
  • Durable Water Repellent finish on shell causes water to bead up and roll off
  • Ground-level side seams allow top layer to fully wrap around body and keeps draft tube in place, further helping prevent cold air from seeping through the zipper
  • Slant box wall baffle construction uses slanted walls for stability and thermal efficiency; construction keeps down from migrating, eliminating cold spots
  • 4-baffle trapezoid footbox is wide in toe area and narrow at the heels for comfort that does not compromise warmth
  • Protecting the head and neck, the hood features 5 baffles and an anatomic fit to provide warmth and low weight
  • Alpine Fit features a semi-tapered mummy profile with a tapered lower leg section to maximize warmth and minimize weight without restrictiveness
  • Single antisnag draft tube (along the 3/4 length zipper) and semi-floating neck collar drapes comfortably, blocking the escape of heat and sealing out drafts
  • Mountain Equipment Helium 400 down sleeping bag comes with a lightweight stuff sack and mesh storage bag


View all Mountain Equipment Men's Sleeping Bags

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Best Use Backpacking
EN Lower Limit 28 degrees Fahrenheit
EN Comfort 39 degrees Fahrenheit
Temperature Rating (F) 28 degrees Fahrenheit
Temperature Rating (C) -2 degrees Celsius
Weight 1 lb. 14 oz. / 2 lb. 1 oz.
Shell Synthetic
Insulation Type Down
Fill 725-fill duck down
Fill Weight 14 / 16 ounces
Lining Unavailable
Sleeping Bag Shape Mummy
Fits Up To (in.) 73 / 78 inches
Shoulder Girth (in.) 60 / 62 inches
Hip Girth (in.) Unavailable
Stuff Sack Size 7 x 11 inches
Stuff Sack Volume 7 liters
Compressed Volume Unavailable
Gender Unisex
Weight - Metric 0.86 / 0.94 kilograms
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