Featuring an anti-odor, thermal regulating merino fabric and a three-button Henley profile. This shirt is as comfortable as it is versatile. Limited in Army. 6-oz. 19.5 Micron 100% Merino wool. Three button, half placket front. Unbreakable Japanese urea cats eye buttons Tailored fit and high armhole, meant to be worn as base layer. Warm gentle machine wash with wool detergent, hang dry. Or tumble dry, no heat. Proudly Made in California.