The Blizzard Survival Tube is a double sleeping bag, providing instant warmth for up to two people. Made of Reflexcell(TM) material, it has a draw cord at both ends enabling occupants to sleep side by side, or head to foot. Essentially a double sleeping bag made of Reflexcell(TM) material, the Blizzard Survival Tube has a drawcord at both ends enabling occupants to sleep side by side, or head to foot. It provides complete shelter for one or two people, and enables a casualty to be re-warmed by putting another person into the Tube along side them. The Tube is also suitable for emergency bivouacs, and for protecting casualties against the cold. Specs Size (vacuum packed): 20 x 11 x 4.5 cm. Volume: 1 litre. Weight: 540 grams. Size (unpacked): length: 2.35 metres Colour: Silver, Green or Orange. Features Drawcord with spring toggle at each end. Extra large. Performance Warmth: 8 Togs - equal to a medium weight regular sleeping bag. Weather protection: fully waterproof and windproof. Storage: Tubes may be stored indefinitely, and are not affected by temperature or moisture, either during storage or in use. Portability: small packed size means the Blizzard Survival Tube takes up very little room in a personal emergency pack or vehicle. Re-usability: Tubes can be re-used many times without loss of performance.