ShelterLogic MaxAP Canopy Replacement Cover, White, 10 x 20 ft. Triple layer 100% waterproof UV woven polyethylene fabric cover Heat welded seams, not stitched, for a stronger bond and drip free seams Patented Twist-Tite tensioning squares up frames and tightens down cover for a clean and finished look Ultimate UV protection treated inside, outside and in between with added fade blockers, anti aging, anti yellowing and anti-microbial agents for long lasting performance Cover attaches to frame fast and remains secure with bungee fasteners (not included) One-piece, full valance, fitted cover^Same quality cover as the one delivered with the original canopy^Made of triple-layer, rip-stop, woven polyethylene fabric material^50+ UPF (Ultraviolet Protection Factor) rating blocks more than 98 percent of UV harmful rays