This sun umbrella inside black coating can provide UPF 50+ protection and block 99% of UV rays, no longer afraid of being burnt by the extreme sunlight and makes you feel cool in hot summer! And the outside waterproof coating protect you from getting wet in rainy day. This uv umbrella is made of 6 ribs fiberglass and high strength iron shaft, lightweight and portable. And it can withstand breeze gentle wind. It is a super excellent choice if you need a reliable small umbrella for daily use.