6 oz., 100% cotton jersey; Silver Gray is 99/1, Oxford Gray is 90/10; Made with sustainably sourced USA grown cotton; Full athletic fit; Multi-needle elastic waistband with inside drawcord; 6" inseam; “C” logo at left hip; “A” list status from CDP (Carbon Disclosure Project); Energy Star Partner of the Year (12 consecutive years); Every piece of Champion apparel purchased from our company qualifies for Hanes4Education