5 oz 100% Polyester jersey knit fabric. Opti-Dri technology transfers moisture away from the body to keep you cool and dry. UV Repel technology keeps skin safe from the sun's harmful rays UPF 15+. V-Neck with Self Fabric Collar. Rounded bottom hem. Heat Seal Label provides Tag-Free Comfort. Tonal embroidered Callaway Chev logo on back yoke.