Extra-fine. This classic crew-neck sweater is fully fashioned in our lightweight 100% extra-fine Merino wool, a favorite for it's softness and warm-weather weight. Classic Fit: A straight and easy fit. Responsible Wool Standard Certified: This global standard protects the sheep that supply the wool for this garment as well as the land they graze, working to make it better for the environment and the sheep. Crew neck. Straight hem.