The Air O Mesh Sun Protection Shirt is made of a highly breathable Air O Mesh fabric that keeps you cool and comfortable anytime humidity is a factor. This performance fishing shirt has a UPF 50 rating and a DWR stain-resistant coating that shields you from the sun&';s harmful UV rays, making it the perfect fishing shirt with UV protection whether you&';re out on the water or on your next outdoor adventure. 87 % cationic polyester , 5% recycled polyester, 8% spandex UPF 50 Quick dry, moisture wicking DWR stain resistant Thumb loops, Active fit