made of PET, which is designed to retain up to 90% of body heat and to weather conditions. Manufactured from the best Waterproof and weatherproof Material for easy storage, retaining or deflecting heat, reusable, waterproof, windproof, moisture , also can be used as ground cover and sun shade Multi-purpose - Solar Survival blanket for versatile use (hiking, running, skiing, camping, car, explorer, tent footprint, backpack cover, rain poncho, emergency signal, shade cover, emergency shelter) Quality - Strong enough to be reused and cheap enough to be disposed. Perfectly for 's must have. Color: silver Material: PET size: 140x210cm Package Contents: 10 x thermal blanket Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.