Description of Lorpen Freeride Italian Wool Socks The fabrication of LORPEN technical socks requires an adequate Quality Management System that guarantees that all products have been inspected and meet strict requirements of elasticity, resistance, adaptability and finishing. LORPEN's Quality Management System is certified under UNE-EN-ISO 9001:2000. Features: 75% Italian wool 15% Polyamide 10% Lycra.