The premium sustainable choice made with 100% recycled materials and concertina style construction trapping air to boost loft and warmth. Ideal for camping backpacking and mountain trekking especially in cold and changeable weather. Features Dual layer concertina blanket construction on upper for improved loft and warmth Offset localised quilting to reduce cold transmision Adjustable hood closure system with elasticated drawcord and cordlock adjuster Close fitting adjustable neck baffle design for improved warmth retension YKK 3/4 length main zip with synthetic insulated zip baffle to trap warmth Anti snag internal zip guard Compression stuffsack included Mummy shape Materials 20D Atmos™ recycled polyester ripstop fabric 41gsm with fluorocarbon free DWR Lining: 20D Atmos™ recycled polyester ripstop fabric 38gsm with fluorocarbon free DWR Upper: 140gsm Recycled Stratus Synthetic Sheet Insulation in a dual layer construction Base: 100gsm Recycled Stratus Synthetic Sheet Insulation in a dual layer construction SHELL: 100% Woven Nylon FILLING: 100% Polyester Specification Reg 1235g/43.6oz XL 1325g/46.7oz WZ 1400g/49.4oz WR 1335g/47.1oz Internal Shoulder Circumference: Reg 150cm/59.1 inch XL 152cm/59.8inch WZ 172cm/67.7 inch WR 170cm/66.9 inch Packed Size: Reg 40X22cm/15.7x8.6 inch XL 40X22cm/15.7x8.6 inch WZ 40X22cm/15.7x8.6 inch WR 40X22cm/15.7x8.6 inch ISO EN: Comfort: 0°C 32°F Limit: -6°C 21°F Extreme: -24°C -11°F Rab Sleep Limit: -8°C 20°F