4.2 oz.100% combed and ringspun cotton; 30 singles; Dark Grey Heather and Deep Heather are 52% combed ringspun cotton48% poly; Neon colors are 52% combed ringspun cotton48% polyester40 singles3.6 oz.; Triblend - 50% poly25% combed ringspun cotton25% rayon40 singles3.4 oz.; sideseamed; youth unisex;