4.5 oz. 100% combed ringspun cotton fine jersey; Heather: 90% combed ringspun cotton, 10% polyester; White is sewn with 100% cotton thread; Rib crewneck collar; Flatlocked side seams; Coverstitched bottom hem & cuffs; Shirt tail hemline front & back; Contrast titanium back necktape; EasyTearô label; Relaxed fit, longer length;