Made of high quality 210D oxford, our bike cover is water resistant and UV proof(50+), so that can protect your bikes well even in rainy or sunny day. Its elastic hem on the bottom and easy-to-detach buckle on the back wheels area for a snug fit to keep your bike secure even on heavy windy days. A lock hole at the front wheels area allows you to lock your bicycle anywhere when not in use, improving the security. A good choice to protect your bicycle!