Description of Lorpen Ski Merino Silk Lined Light Socks - Women's 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: New merino wool 42% Natural silk 42% Lycra 10% Polyamide 6% Extreme skier terrain Arctic weather Extra thin