5.6 oz., preshrunk 100% combed ringspun cotton 30 singles Heather Grey is 90% combed ringspun cotton, 10% polyester 1x1 baby rib semi-fitted contoured silhouette with sideseams features a TearAway label double-needle bottom hem bound-on self trim neck and sleeve hem Oeko-Tex® Standard 100 Certified cap sleeves