Instahut Waterproof Shade Sail 4x6m Rectangle Sand 95% Shade ClothInstahut Waterproof Shade Sail 4x6m Rectangle Sand 95% Shade Cloth Set sail into the sunset. A simply beautiful experience. Similarly, thats also true with our Shade Sail. Designed to be a permanent covering, our Shade Sail is highly waterproof and commercial grade 100% polyethylene fabric. This allows cooling air to pass through and help keep the under shade areas well ventilated. The material also blocks up to 98% of harmful UV rays and is all