The Marmot Helium MemBrain with MemBrain® waterproof/breathable fabric and 850+ fill down resists harsh weather and condensation!
It is hard to match Marmot's warmth to weight ratio with certified 850+ fill down. The Helium MemBrain is the ideal three season bag that compresses small and offers full-conditions protection.
Velcro-free face muff gives a nice tight closure with no discomfort. Insulated draft tube keeps cold drafts from getting through the full length zipper. Stuff sack and storage bag included.
Nautilus Hood: the same construction as Marmot's 8000m jacket hood, a 3D hood that wraps around your head and reduces heat loss.
Hood Muff: creates a warm down gasket around your face, keeping the drawcord away from the face.
Stretch Tricot Baffles: allow the bag to be stuffed and unstuffed without tearing the baffle material.
Trapezoid Foot box: matches the shape of your feet, wider in the toe area and narrower in the heels.
Down Fill Oversized Draft Tube: eliminates cold spots
Zipper guard: keeps the draft tube fabric from getting caught in the zipper
Ground Level Seams: top layer wraps fully around the body creating a warm layer of down.
EN Tested:Comfort Rating: 25.5° F
Comfort Limit: 13.8° F
Extreme Rating: -19.8° F
Regular fits up to 6'. Long fits up to 6' 6".
