Saucony Men's Nomad Sport Top 88% Polyester, 12% Spandex Imported Reflective details on front and back for added visibility Ultra lightweight, windproof knit on front panel and along the top of your shoulders warms your core and keeps you dry Laser perforations at the center back and soft, knit underarm panels provide ventilation where you need it most Front and back reflectivity keeps you visible in low light Envelope thumbholes on seam and extra cuff length keeps your hands toasty Reflective details on front and back for added visibility