While all fabric provides a degree of protection from the sun, certain cooling products have an additional UV treatment applied for enhanced protection from the sun’s harmful UVA and UVB rays. A fabric’s Ultraviolet Protection Factor (UPF) indicates how much radiation it will allow to reach your skin. A UPF rating of 30-49 indicates very good protection, with a UPF 50+ rating providing excellent protection (blocking 98% of the sun’s rays). \r