The Stanfield's Men's 2-Layer Wool Blend Long Sleeve Shirt offers a soft inner layer of blended cotton and polyester next to your skin for itch-free, all-day comfort. The inner layer of this men's wool blend long sleeve shirt contains 50% cotton and 50% polyester for absorbency and softness next to the skin. The outer layer is a moisture moving blend of merino wool and polyester which maintains warmth and dryness. This men's base-layer also has an additional insulating barrier that is created when air is trapped between two layers. Quality workmanship, attention to detail, and legendary comfort are what makes this wool base-layer so unique in the market.