We have expensive cushions on our chaise lounges, and we wanted covers that were rainproof to protect them. We live in southern OH and get a lot of rain during the summer. I had bought covers here locally, and nothing worked, always ended up returning them. However, the chaise lounge covers are 100% rainproof! They also have a very nice appearance; we bought the All-Seasons. The only problem at all (not really a problem, just kind of an inconvenience) is the ties and strap to secure them in storms, wind, etc. Velcro would be much easier. If it were not for that, I would give this cover a 5 star.