4.9 oz 92% Polyester / 8% Spandex jersey fabric. Opti-Dri technology transfers moisture away from the body to keep you cool and dry. Stretch to give you full range of motion. UV Repel technology keeps skin safe from the sun's harmful rays UPF 50+. V neckline with solid self fabric collar. Teardrop cutout on sleeve. Heat Seal Label provides Tag-Free Comfort. Tonal embroidered Callaway Chev logo on back yoke.