The classic Terramar Men's Two Layer Sportsman Midweight Pants have been designed to meet your performance level. The natural two layer fabric system is designed to trap air between the layers providing a natural barrier of warmth without excess bulk. The midweight pants combine the best of Mother Nature the softness of cotton next to the skin with the natural insulation of merino wool for breathable warmth and odor control for use in all cold weather environments, at home, on the job, or enjoying the outdoors. Two Layer Construction: Outside layer: 50% cotton, 40% merino wool, 10% nylon. Inside layer: 100% cotton. Two layer construction provides a thermal barrier for extra warmth without bulk. Cotton inner layer ensures softness next to skin. Merino wool provides natural itch free breathable comfort and odor control properties. Rib trim with spandex holds it shape and will not stretch out. Plush back waistband ensures comfort. Flat seam construction for comfort and durability soft and non chafing next to skin. Fabric provides UPF 50 sun protection, shielding skin from harmful ultraviolet rays. Designed to meet your performance level for wear in cold to very cold temperatures with low to medium activity. Tagless to feel soft against your skin. Import.