Lorpen STMW 1157 black tri-layer socks properties: Warm socks for special tasks from the Lorpen brand, a manufacturer of technical socks that keep feet dry even during long exertion. Dry feet reduce the risk of abrasions. Tri-layer is a three-layer technology used in the product, made of a unique blend of materials that significantly accelerates the process of moisture removal, while being resistant, durable, and gentle to the foot. It does not absorb moisture but transfers it to the outer layer. Composed of natural merino wool. Perfect for winter sports. Material: synthetic. Color: black.