The Mountain Equipment Iceline Sleeping Bag is a lightweight expedition down bag designed for super-cold weather and harsh conditions. Designed to keep you warm in temperatures as low as -30, the Mountain Equipment Iceline Sleeping Bag draws its warmth from new Gore (as in Gore-Tex) Thermium fabric; designed to work in harmony with insulating fibres by being windproof and water-resistant, Gore Thermium allows the down inside the bag to function to the best of its ability. The Iceline Sleeping Bag also features an innovative body-mapped insulation pattern to optimise warmth across all areas of the bag – the result of intensive research and development to ensure that whether you’re on a Himalayan expedition or trekking though the Arctic, you’ll get a good night’s sleep.