absorbing little water ,dry quickly affter rain,without adding weight,so convcnient in usage. 1: waterproof, fireproof, anti-rotten .2: no adhesion temperature to 70 °C, -30 °C to cut off cold constantly. 3: light weight, g lies 0.45-0.75kg / 4:absorbing little water ,dry quickly affter rain,without adding weight,so convcnient in usage. Plastic coated tent