4.2 oz./yd (US) 7 oz./L yd (CA), 100% airlume combed and ringspun cotton, 32 singles . Athletic Heather is 90/10 airlume combed and ringspun cotton/polyester. Dark Grey Heather is 52/48 airlume combed and ringspun cotton/polyester. Slim fit. Set-in coverstitched v-neck. Side seams . Tear away label.