The ShelterLogic 10' x 20' Canopy Enclosure Kit includes 1 solid, double-zippered door panel, 1 solid rear panel and 2 solid wall panels to convert your canopy into an enclosure. Made of triple-layer, water-resistant polyethylene ripstop that is UV treated and provides UPF 50+ sun protection. Prefit walls install easily with bungee cords (included).