Emergency Mylar Survival Blanket / Sleeping Bag Insert Key benefits Retains body heat: Constructed from high-grade PET film with an aluminum coating, this emergency blanket reflects and traps body heat to help keep you warm in low-temperature environments. Weather protection: Durable and waterproof materials protect against rain, wind, humidity, and cold when used alone or as an extra layer. Ultralight and compact: Thin, lightweight design folds down small and stores in the included storage pouch for easy carrying in a backpack or emergency kit. Versatile use: Functions as an emergency blanket, a lightweight survival sleeping bag layer, or an insulation wrap to extend the comfort of a sleeping bag. Features and materials Material: High-grade PET film with aluminum reflective layer for heat retention and water resistance. Durability: Tear-resistant construction designed for repeated emergency use in outdoor conditions. Portability: Folds easily into the supplied storage bag, making it convenient for hiking, camping, and travel. Suitable for adults: Sized and designed to provide coverage and insulation for adult users as an emergency layer or sleeping bag supplement. Practical applications (use scenarios) Stranded hiker: Wrap the blanket around your torso to conserve body heat while waiting for help or shelter. Cold, wet camping night: Use the blanket inside or on top of your sleeping bag to add a waterproof insulation layer and reduce heat loss. Ultralight backpacking and emergency kit: Keep the compact pouch in your pack for sudden weather changes, trekking, or survival situations where weight and space are limited. Why customers choose this product Simple, dependable protection against heat loss and moisture in emergency and outdoor situations. Lightweight and easy to carry so it is always available when conditions change unexpectedly. Compatible with other sleep systems or can be used alone as a survival sleeping bag layer. Contents Emergency mylar blanket with aluminum film layer Compact storage pouch for easy transport and storage Care and use Fold and store dry when possible. Wipe clean with a damp cloth if needed. Use as an emergency thermal layer; avoid open flames or direct prolonged contact with heat sources.