6.9 oz 100% polyester baby pique interlock fabric with water repellent finish. Repel fabric resists wind and water to protect you against inclement weather. UV Repel technology keeps skin safe from the sun's harmful rays. UPF 50. Stretch re?ective tape with overlock stitching across shoulders, back yoke and forearms allows for a greater range of motion. Contrast zipper with Callaway logo rubber zipper pull. Rib knit cuffs. Reflective Callaway logo heat seal on right sleeve.