4.2 oz./yd² (US) 7 oz./L yd (CA), 52/48 Airlume combed and ring-spun cotton/polyester, 32 singles
Athletic Heather & Black Heather are 90/10 Airlume combed and ring-spun cotton/polyester 
Heather Prism colors are 99/1 Airlume combed and ring-spun cotton/ polyester (Unique coloring, grey flecks of heather pulled through the base color)
Pre-shrunk
Retail fit
Unisex sizing