The primary materials that compose this product contain a minimum of 20 percent organic content. Be the fashion-forward maven with your urban finesse wearing Smartwool Short Sleeve Swing Top. The regular fit T-shirt features a round neckline, short sleeves, yoked keyhole cutout at the back, vented hem, and an easy pull-on style. Merino 150 fabric:. Core Spun yarns wrap merino wool fibers around a nylon core for a blend of natural and synthetic performance. Merino wool offers a supremely soft, next-to-skin feel. Moisture-wicking performance moves perspiration away from the skin. Nylon core lends resiliency to the stretch for improved, durable recovery. 150 g/m2 / 4.42 oz/yd2 fabric weight. 50% Merino wool, 50% organic cotton. Machine washable. Made in Peru. Color: blue