This sleeping bag is all about minimizing heat loss. Huge volume of insulation 650 g/m², wide warming collar, system of the hood tightening “warm hands” are combined in this model. We recommend this sleeping bag for winter travel at stable low temperatures. The fabric of the upper part (a lighter color) of the sleeping bag is breathable and is good ventilated. The bottom part of the sleeping bag is made of RipStop fabric, which is very strong. PU 250 mm H2O treatment protects from wind and rain. Ropes with different shape and color for defining the tightening of the top or the bottom of the hood only by touching. The roll along the border of the hood is a comfortable protection when the hood is tightened. The roll has a different width, to decrease the uncomfortable knots and folds. Technical features: soft roll along the border of the hoodanti-catch strap along the zipper the hood has 2 pillow entrances warming collar 360c possibility to zip together the sleeping bags with right and left zipper 3D shape of the hood luminescent loop on the slider of the zippers pack sack with compression straps that can be lengthened to turn the bag into an emergency backpack inner pocket made from soft mesh fabric loops in the top and in the bottom for drying the sleeping bag.The filling is formed into blocks, which are moved from on another for length of half of the block. This stops the cold air from getting through the stitches. The inner fabric of the sleeping bag is made of Polyester 190T and the inner fabric of the hood is made of Soft MicroPolyester 300T Diamond RipStop. This fabrik is hypo-allergenic and very comfortable. All Alexika sleeping bags are certified according to EU norm EN 13537. Color oliveGewicht 3.200Dimensions 95 x 230 x 65 cmPacked dimensions 45/35 x 30 cmComfort zone -3 °CTransition zone -8 °CExtreme zone -26 °CSeason Use of products all year round, in any weather conditionsOuter material upside Polyester 190TOuter material downside Polyester 190T Diamond RipStop PU 250 mm H2OInner material Polyester 190T; Hood/Haube - Soft Micro Polyester 300T Diamond RipStopInsulation / fillig APF-Isoterm 3D 650 (2x325) g/m²