5.3 oz 95% polyester/ 5% spandex 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 suns harmful rays. UPF 50. Stretch fabric moves with you to increase your range of motion. Rib knit collar. 5-button placket with Callaway embossed buttons. Double needle hemmed bottom with side vents. Princess seam detail stitching on back for a feminine look. Heat seal label provides tag-free comfort. Tonal embroidered Chevron on back neck.