Brightent Patio Furniture Table Cover Rectangular Round Outdoor chair Water Proof (Table cover 67"L*37"W*28"H XS15N) This item is made of 210D woven polyester(Oxford) material with PU coating, which is water-proof. And this cover has another important feature for water proof: Along the seam, from the inside, there is the seal tap. The tap provide much better function for water proof.