Thermal Emergency survival sleeping bag Material: PET Film Aluminized combined. Measure: 40"x68"(Children), 40x84"(For Adult), Features: 1. An ideal survival/emergency bag for any time you may need protection from the elements. 2. An ideal two person survival/emergency bag for any time you may need protection from the elements. 3. Made of soft and water-and-windproof fabric which has a soft feel and resists soaking. 4. Foot vent and large opening provide ventilation to prevent you from getting hot or clammy. 5. Increases the thermal properties by encapsulating body warmth. Size 40X 84 inches. 6. Whistle will be availabe to equip with it. 7. Survival item for earthquake, unexpected accident happened in camping or other outdoor activity.