SherpaAdventureMensSizeChart The soft, luxurious plaid is made of 80% cotton and 20% wool fabric - a combination that's breathable, warm and comfortable. It has a timeless look with two buttoned chest pockets for utility. The design of the seams make for a pack friendly shirt, keeping the straps from chafing against your shoulders. Features: - The luxurious woven plaid fabric is made of 80% cotton and 20% wool and is brushed to achieve an extra soft hand - Fabric is naturally breathable, warm and comfortable - Two chest pockets to stow essentials - Seams are placed away from shoulder tops to avoid chafing under pack straps - Shirt-tail hem style - Weight: 310 g. (10.9 oz.) - Brushed twill; 80% cotton / 20% wool