Pearl Izumi - Ride Elite Tall Wool Socks 49% Merino wool, 48% nylon, 3% elastane Made in US Anatomic arch compression for a performance fit ELITE Transfer Merino wool yarns provide superior moisture transfer and insulation Autumn/Winter 2015 Flat toe seam construction provides superior comfort over toes Mesh ventilation over top of foot; Tall 19.5 cm cuff height; Unisex sizing