4.8 OZ, 70% polyester, 30% recycled polyester jersey knit fabric. Opti-Dri technology transfers moisture away from the body to keep you cool and dry. UV Block technology keeps skin safe from the sun's harmful rays. UPF 50+. Open V-neck collar with covered snaps placket. 3-button placket with Callaway embossed buttons. Callaway - Women's Eco Horizontal Textured Polo