4.5 oz., 100% certified organic combed ringspun cotton; Junior silhouette with sideseams and display tape; Seamed collarette; Double-needle stitching on sleeves and bottom hem; TearAway™ label; Certified under Oeko-Tex® Standard 100; Heather Grey is 90% certified organic cotton, 10% polyester ; Single-needle stitched neck;