STORAGE: Multiple internal storage pockets DESIGN & DETAILS: Marmot's warmest and most protective sleeping bag designed to withstand epic adventures in extreme temperatures Designed with Pertex(R) Shield waterproof and windproof Fabric with a breathable membrane Lightweight sleeping bag keeps you warm and dry in extreme environmental conditions Stuffed with 800-fill-power down Equipped with a draft tube and collar Center zip lets you regulate heat, while dual side zippers make it easy to enter and exit the bag Multi-baffle, wraparound foot box creates a warming chamber that keeps warmth inside the bag Internal hood and draft collar cord cinch prevents heat loss to the head