7.2 oz/ly (CA), 4.3 oz/sq yd (US), 146 gsm (EU). 100% Dri-FIT polyester with moisture management technology. Rib knit collar. 3-button placket. Tagless. Rolled forward shoulder seams. Nike embossed pearlized buttons. Open hem sleeves. Double needle hemmed bottom. Contrast embroidered Swoosh logo at left sleeve. Breathable. Classic fit.