4.2 oz., 100% combed and ringspun cotton; 30 singles; Ash is 99/1 combed ringspun cotton/poly; Athletic Heather is 90/10 ; Dark Grey Heather is 52% combed and ringspun cotton, 48% polyester; Triblends - 3.8 oz., 50 poly, 25% combed ringspun cotton, 25% rayon, 40 singles; Neon colors are 3.6 oz., 52% combed ringspun cotton, 48% polyester, 40 singles; Available in two-tone color options ; Unisex sizing; retail fit; sideseamed; Tear-away label;