This portable cooler, classic surface color, natural color, LLDPE material, inside (food grade) outside (UV protection) safety and environmental protection, strong corrosion resistance. Silicon tension latches are not easily broken or automatically loosened, UV inhibitors protect the cooler from sun damage, and non-slip rubber feet help maintain stability. The middle insulation layer is made of polyurethane, with excellent insulation and high strength, and the silicone sealing ring seals the entire space to avoid heat convection and extend the low temperature storage time.