Shade covers are made of 100% polyethylene. Our company's shade covers are designed to lasts five times longer than shade covers that are not U.V. resistant. Put two to three 8 foot posts in the ground and hang a shade cloth for instant shade. tan Shade cloth measures 6 ft x 12 ft. Darker shade cloth are 2nds and may have slight flaw such as pulled thread or missing grommet but very useable and measure 6 ft by 16 ft. Also great for stall mats and shearing mats.