Bought new and only used once inside a tent over a sleeping bag. The Mammut Sphere Bivi is an uncompromising, very light bivouac sack that should be on every tour. Equipped with rope openings, drawstring and integrated bag. The upper side consists of a breathable membrane with a water column of 15,000 mm and a water vapor permeability of M / P 15,000 g / m3 / 24 h. The underside is made of a waterproof nylon fabric with a water column of 5,000 mm. - Max. Body size: 195cm - Width: 80cm - Length: 210cm - Weight: 310g