Our truck tarps feature high-quality, 6-ounce per square yard, 12 mil polyethylene material, which is fabricated for great resistance against the weather. The heavy-duty truck tarps are waterproof, rot and mildew resistant, and they provide 100 percent UV protection. With black rope reinforced hems along all the edges and reinforced corners, our truck tarps are super tear-resistant.*Note: ALL tarps are 4-6 shorter by length and width than the stated cut size.