Three-layer construction of specially reinforced, laminated, high-density polyethylene fabricWater, rot, and mildew-resistantCrack-resistant to -20 FahrenheitRustproof grommets on each corner and all around themPoly roping sewn into them all around for extra strengthTough with reinforced corners, all-purpose utility coversRegular grade tarps 8 x 10 weave, aluminum grommets every 36'' around them and at every corner