Temperature raiting (for two persons use):  Comfort: +2... -3C (+36... +26F) Extreme: -18C (0F) Dimensions and weight: Dimensions: 230x120x73 cm (90.6x47.2x28.7 inches) The packed: ⌀20x35 cm (7.9x13.8 inches) The compressed: ⌀20x23 cm (7.9x9.1 inches) Full weight: 1186 g (41.8 oz) Insulation weight: 522 g (18.4 oz) Materials: Outer: 100% Nylon 20D, 35 g/m2, Ripstop, DWR Lining: 100% Nylon 20D, 36 g/m2, Ripstop, DWR Insulation: High-quality gray goose down Kariguz with hydrophobic treatment Nikwax FP 680 Description: Super light warm comfortable double down sleeping bag. A light and fast style sleeping bag, it can also be used in a variety of situations and sporting directions due to its outstanding performance characteristics. Tandem Light is the ideal solution for those who are looking for the possibility of significantly reducing the weight of their bivouac equipment without compromising the comfort for two. The design of the sleeping bag allows two persons to enjoy the thermal advantage of co-sleeping in one sleeping bag, while maintaining an effective thermal insulation provided by a warm collar of complex shape. Zippers on both sides of the sleeping bag allow you to leave the bag and return without disturbing the companion. Wave construction Flat seams Two zippers on the sides with Primaloft insulated guards Insulated collar Hood drawcord with dual adjustment Loops for drying Anatomic shape of the bag in the area of the feet Compression Stuff Sack More insulation on feet Two inside pockets with zipper