Sportsman Cool Breeze performance fishing shirts are visibly superior with built-in cooling channels that let the breeze in while keeping the heat and sun off your body. The Cool Breeze fabric is super-lightweight and breathable with built in mesh, it&';s not just another shirt, it&';s an engineered fabric cooling system designed and manufactured to maximize comfort. This is a necessary tool to bring with you during those dog days of the intense summer sun. FEATURES UPF 50 Sun Protection Side Mesh Panels For Extra Breathability Lycra Bands Around Wrist Built In Thumbholes Stain Guard MATERIALS 60% Polyester 40% Nylon