5-oz. 95% Mercerized Merino Wool/ 5% Lycra, 18.5 micron. Mercerization gives merino an amazing hand feel, improves comfort, increases fabric strength, and enables machine-washing. Merino wool provides excellent moisture management, effective temperature regulation, odor control, and stain resistance. Self turn neckline finish. Slightly tailored fit. Pre-shrunk. Machine wash cold, lay flat to dry. Proudly Made in Turkey.