Features:1. This waterproof exterior doormat has double-sided aluminum foil, and the interior is made of foam. It is resistant to moisture, stains and wear.2. Moisture-proof aluminum foil mats can be as tent pads, tent sleeping pads, picnic shelters, beach pads and sleeping pads.3. The aluminum foil and foam mat outside are very lightweight, foldable and easy to carry. It does not bring any burden to travel and camping.4. No need to rinse with water, no need to scrub, just use a damp cloth to clean the dirt and sand easily, which can save time when cleaning.5. Double-sided and insulated aluminum foil outer layer helps trap body heat so you stay warm. Suitable for use in all seasons, even during cold winter weather. Specification:Material: Foam, Aluminum Color: Silver Thickness: About 0.25cm/0.1in Size: Type A: About 200x20 0cm/78.74*78.74 inch Type B: About: 150x20 0cm/78.74*59.05 inch Packing List:Aluminum Foil Sleeping Mat*1Notes:1. Due to the different monitor and light effect, the actual color of the item may be slightly different from the color showed on the pictures.2. Please forgive the slight measurement deviation caused by manual measurement.