4.5 oz. 100% combed ringspun cotton fine jersey; Heather: 90% combed ringspun cotton, 10% polyester; White is sewn with 100% cotton thread; Coverstitched rib collar & armholes; Shirt tail hemline front & back; Flatlock side seams; EasyTearô label; CPSIA compliant tracking label in side seam; Relaxed fit, longer length;