This Mountain Run lightweight jacket offers safety and comfort for every runner. Our 100% polyester safety yellow jacket features center front reverse coil autolock zipper with reflective toggle, underarm vents, lower front concealed zippered pockets with reflective toggles, audio port access through inside lower left pocket, elasticized cuffs, adjustable shockcord at hem, as well as reflective piping at shoulder yoke and center back yoke. Every runner values comfort and extra safety while out on a run.