Developed for the humid tropical or dry desert air, the Bless Up is Roark’s all around, moisture wicking, mechanical stretch, perforated woven. The “Bless Up’s” Tactel fibers are lighter, softer and stronger than your everyday cotton woven providing a long lasting yet light & airy experience. Built with fabrics made to last 68% Nylon 32% Polyester Features LIGHTWEIGHT PERFORATED CONSTRUCTION MECHANICAL STRETCH QUICK DRY & MOISTURE WICKING MADE WITH TACTEL™ NYLON FIBERS SOFT RUBBERIZED BUTTONS CLASSIC SHORT SLEEVE FIT