This Men’s Classic All-Season Plant-Based Dye Merino Base Layer Long Sleeve will help you feel great all through the day. With seams designed to minimize chafing and enhance the contours of your body, this tee is made with a durable blend of a nylon core with Merino wool to help you feel the softness and enjoy the temperature regulation Merino brings. Plus, our plant-based dye provides a technique that is both eco-conscious and unique.