S, M, L, XL - Econscious adults 5.5 oz, 100% organic cotton classic long-sleeve t-shirt. 100% organic cotton ringspun jersey. Cotton rib neck, side-seam construction, shoulder seam clean finished with self-fabric tape and double-needle coverstitched seams. Here's a t-shirt that makes a difference. The soft jersey knit is certified 100% pure organic cotton in a smoother, stronger ringspun so you get top quality and peace of mind. Built to last!