4.2 oz., 100% combed and ringspun cotton; 30 singles; Ash is 99% combed ringspun cotton, 1% polyester; Athletic Heather and Black Heather are 90% cotton/10% polyester; All other Heather/Blend colors are 52% combed ringspun cotton, 48% polyester; Shoulder taping; slim fit; Sideseamed; fitted sleeves ; Longer body length ; Tear-away label