4.2 oz., 100% combed and ringspun cotton; 30 singles; Dark Grey Heather is 52% combed and ringspun cotton, 48% polyester; Triblends - 3.4 oz., 50% poly, 25% combed ringspun cotton, 25% rayon, 40 singles; Retail fit; Sideseamed; Ribbed cuff; Tear-away label