6.5 oz., 100% preshrunk ringspun extra heavyweight cotton piqué; Soft fashion knit, contoured collar and welt cuffs; Double-needle stitching on bottom hem; Sideseamed with 2" side vents; Certified under Oeko-Tex Standard 100; Heather Grey is 90% cotton, 10% polyester missy contoured silhouette; Pearlized buttons; Single-needle stitched neck, shoulders, armholes and sleeves;