4.5 oz., preshrunk 100% combed ringspun cotton; 30 singles; Heathers-60/40 poly/combed ringspun cotton; Heather Grey - 90/10 combed ringspun cotton/poly; shoulder-to-shoulder tape; double-needle bottom hem; Oeko-Tex® Standard 100 Certified; features a TearAway label; fitted silhouette with sideseams; seamless collar; double-needle sleeve