100 OE-certified organic cotton (comfortSoft combed cotton),Comfort fit: Falls free from the body,1x1 rib collar with elastane for perfect stretchability and shape retention,Tagless,Lay-flat collar construction with single-needle top stitch around bodyfabric,Double needle stitched hem and sleeve hem,Shoulder-to-shoulder tape for superior support and seam stability,Tubular fabric,Tubular knit,