100% polyester; Anti-microbial, anti-static, anti-odor and UPF 50 protection; Quick drying and breathable; Proven to absorb, wick and evaporate more moisture than cotton; Sideseamed; Double-needle topstitch on bottom hem and side vents; Clean-finished inside neck with self-fabric neck tape; Set-in sleeves with open hem; Two-button placket;