PERFECT FOR HIKING, RUNNING, & FIRST AID KITS – NASA-designed mylar is waterproof and reflects up to 90% of body heat for cold, wet, or hot weather survival situations. Designed for outdoor adventures to pack away ultralight & compact, our thermal blankets are a must-have for camping, trail running, marathons, 48hr/72hr/30 day go bags, tactical gear preppers, earthquake survival kits, home emergency, and car first aid kits. PREMIUM MATERIALS FOR SURVIVAL SITUATIONS – Other emergency survival blankets are made flimsy and cheap in ziploc bags for one time use. Ours are made tough to be there when you need them. Stash these tactical emergency blankets everywhere – in your car, roadside emergency kit, survival kit, first aid kit, bug out bag, zombie survival kit, and camping gear. EXTRA LARGE FOR FULL BODY PROTECTION – Our massive 7x5 foot emergency blankets are 23% larger than standard foil blankets for full body protection. With a little bit of tape and paracord, these XL mylar heat sheets can be converted into an emergency shelter, emergency sleeping bag, emergency bivy, or other survival gear. DURABLE, ULTRALIGHT, COMPACT PACKAGING – Includes 4 extra large (5’ x 7’) double-sided color survival blankets rolled into ripstop nylon stuff sacks. You can stash single blankets anywhere, or carry enough for your whole group in the included zipper pack with carabiner. No other space blanket comes close to our ultra compact, durable storage - the perfect balance of durability & light weight at only 9.5 oz/set (only 2 oz/blanket). 100% SATISFACTION GUARANTEED – We stand behind our products. Satisfaction guaranteed. 1% FOR THE PLANET – We donate a percentage of profits to conservation efforts around the world, including The Conservation Alliance and many more.