Scubapro Long Sleeve Rash Guard UPF50 - Womens JewelA garment with a rating of UPF 50 blocks 98% of UV radiation. UPF ratings of 50 and above are considered to be in the Excellent Protection Category. All models in SCUBAPROs UPF collection are rated 50 or above. Look sharp while enjoying solid sun protection. The UPF 50 Rash Guard is comfortable, soft and dries quickly. Designed for diving but perfect for all water sports, wear one under a wetsuit or by itself for both comfort and dependable protection