*220 GSM breathable HDPE( high density polyethylene) material. UV Treated, Resistant to Mold & Mildew. 3 Year Warranty against UV degradation. *Sun shade can be used over a patio, driveway or other outdoor area to protect against UV rays. *Up to 90% of harmful UV rays are blocked out while allowing air and water to pass though the mesh. *Sail comes finished with 3rd generation reinforced stitched seam and stainless steel "D" rings on each corner for easy hanging. *You measure, we make it. We are not able to accept returns on custom size orders, please measure carefully before you order. Need more custom sizes, please contact with us.