Fit & Design: Athletic fit shirt Classic crew neck design promotes optimal comfortability Features a 2-way comfort stretch to enhance mobility Mesh ventilated back increases breathability for added comfort Raglan sleeve design delivers superior range-of-motion Pilling resistant fabric keeps you looking sharp wear after wear Technology: Moisture-wicking fabrics absorb and evaporate sweat and moisture quickly keeping you cool and comfortable Anti-bacterial technology reduces growth of odor causing microbes keeping you smelling and feeling fresh all day UPF 50 Protection blocks harmful UV rays to keep you safe all day on the course