Description Thermo-Shield insulation and a soft touch Microtex lining combine with Amplify (expand) technology in knee and hip area to minimize heat loss, as well as layer of Illuminate warmth reflector - makes this a great four-season sleeping bag with a comfort rating of 0°C. It also features a reflective zip puller and internal pocket for valuables. Features Thermo-Dynamic contoured design Elastic(Amplify) stitching to minimize heat loss around hips and knees but gives you room when you need it 2-way zipper with draft baffle 1 x layer Illuminate – Illuminate is a durable silver coated fabric that aids the bag to retain body heat. It is sandwiched between the inner lining and outer layers Insulated with Thermo-Shield Internal pocket for valuables Specifications Weight: 1.893 kg Comfort Temperature Rating: 0°C Lower Limit Temperature Rating: -5°C Extreme Temperature Rating: -15°C Dimensions: 220 X 80/55 Packed Size: 34 X 22 Cm Material(s): 300g/M2 Thermo-Shield First Ascent Amplify 1800 Sleeping Bag