NIKE Tech Knit Windrunner Jacket Mens Fabric: 48% cotton/48% nylon/3% rayon/1% spandex Fabric: 48% cotton/48% nylon/3% rayon/1% spandex Machine wash Hood with integrated back bungee cord for personalized coverage Side zip pockets with woven pocket bags for extra wind protection and warmth Full-front zip with storm flap to help keep water out and protect the knit from snagging The dropped hem adds extra coverage.