TerraShell Sleeping Bag, Blanket, Windproof Bivvy Bags, Foil Blankets, Space Survival Thermal Bivy Sack, Emergency Bags for Camping & Outdoor Use

✅ 【SACK-STYLE ENCLOSURE – NOT A FLAT SHEET】 The body slides inside a full enclosure, so the aluminised lining wraps the shoulders, arms, and legs. Unlike a flat sheet, far less outside air reaches the body. This emergency sleeping bag stays securely around you while you rest or wait for help. ✅ 【REFLECTS UP TO 90% OF BODY HEAT】 The metallised interior faces the body and sends radiated warmth back towards it. Because this bivvy bag works on the warmth the body is already losing, there is nothing to light, plug in, or charge. It is ready to use the moment it comes out of its packaging. ✅ 【WINDPROOF & WATERPROOF OUTER SHELL】 The outer film closes off wind and driven rain, keeping the reflective face dry and turned inwards towards the body. Because the shell does not take on water, the sack does not turn heavy or cold to lie in after a shower or an unexpected soaking. ✅ 【WEIGHS 113G & FOLDS TO POCKET SIZE】 The whole survival bag packs down smaller than a drinks can. It stores easily in a glovebox, rucksack pocket, coat pocket, or household emergency box without taking up room. It can be carried on every walk and left in place until needed. ✅ 【EMERGENCY WHISTLE INCLUDED】 A whistle comes with the sack for signalling when hands are cold or a voice carries badly. These emergency sleeping bags for survival suit hill walking, camping, a breakdown on a cold night, a power cut at home, and general emergency preparation.