UV Repel technology keeps skin safe from the sun's harmful rays. UPF 50. Stretch reflective tape with overlock stitching across shoulders, back yoke and forearms allows for a greater range of motion. Contrast zipper with Callaway rubber zipper pull. Rib knit cuffs. Reflective Callaway heat seal on right sleeve.Repel fabric protects you from wind and water in inclement weather.