Introducing the improved Men's Merino 250 Base Layer Crew, made with 100% Merino wool in a range of new colors and an enhanced fit. With shoulder panels that eliminate top shoulder seams and flatlock seam construction to minimize chafing, this base layer is a must-have for cold weather activities like skiing, hiking, climbing, or biking. Experience the difference in functionality and aesthetics with this essential winter wardrobe piece. Don't forget to follow the care instructions for best results.