8-ounce, 50/50 cotton/poly 60/40 cotton/poly (Heather Sports) Double-needle stitching at waistband and cuffs 1x1 rib knit collar, cuffs and waistband with spandexSafety Green is compliant with ANSI/ISEA 107 high-visibility standardsRecycled, high-performing black tear-away label