“All fabrics can shield some UV radiation, but clothing [and hats] that are designed to do the most effective job are items that are labeled with a UPF rating. The ratings range from UPF 15 to 50 ...

All of the sun shirts in this guide have a UPF rating of 30 or above. Most sun shirts are made from polyester, with a stretchy material like elastane incorporated as well. Polyester is durable ...