evo.com | Pearl Izumi Socks > The Pearl Izumi Merino Tall Bike Socks are the highest topped in the Pearl Izumi lineup, offering extra protection, overlapped integration with long pants, and a hint of added warmth on chilly days. They're made of Transfer Merino fabric, which incorporates recycled plastic fibers into the Merino wool construction to help regulate hot feet and cut down on the environmental impact of its production. 18.5-micron Fine Merino Wool / Repreve(R) Recycled Polyester Flat Toe Seam Construction Anatomic Arch Compression for Performance Fit Mesh over Forefoot Helps Keep Hot-foot at Bay 19cm Cuff Height | Pearl Izumi Tall Bike Socks 2022 - Medium | Wool/Polyester/Micron