【Skin-friendly & Environmentally Friendly】- The KMZ camping mattress meets the 6P Environmental Protection Standard. The material (PVC) thickness of our car mattress is over 50% greater than that of traditional mattresses, featuring a double-sided Polyester Pongee bed surface, light but firm and wear-resistant. It's cold-resistant to -25°C, soft to the touch, non-toxic, and odorless. Moreover, it is stable, pressure-resistant, and shock-resistant. 【4 Separate Air Chambers】- The inflatable...