é3.7 oz. 65% polyester 35% viscose. 30 singles. Athletic Heather is 52/48 poly/viscose. Slub - 50% poly 37.5% combed ringspun cotton 12.5% rayon 30 singles 3.8 oz.. Marbles - 91/9 poly/combed ringspun cotton 40 singles 3.5 oz.. low cut armhole. easy drapey fit. curved bottom hem. sideseamed.é