UPF 50+ blocks over 99% of UVA & UVB rays, DOUBLES Shade & Keeps You COOLER!. Super lightweight. INSTANTLY ATTACHES with Peel & Stick to ANY NYLON/POLY Canopy. MAY NOT fit all brands! MEASURE BEFORE ORDERING. STABILIZE canopy by weighting the bottom pocket with sand, water bottles or other lightweight objects. INCLUDES 1 sidewall with attachment to 2 sides of canopy. CANOPY NOT INCLUDED!