Stay cozy and mountain man-ready in the timeless Merrell Fieldston Long Sleeve Shirt. M-Select performix blend of polyester and wool, in a solid or plaid with a contrasting collar lining. The button-up Merrell Fieldston Long Sleeve shirt features Merrell's modern outside fit. Wicking, quick drying and soft flannel with a touch of natural wool for extra warmth feels great anytime, anywhere. 80% Polyester, 20% wool.