The FXR Riding Socks are designed to deliver lasting comfort and a secure fit inside your riding boots. Constructed with a lightweight acrylic and nylon foot, they feature reinforced toe and heel areas for added durability in high-wear zones. The extra-long design is ideal for use with knee braces, while the lightweight polyester and spandex upper wicks moisture to help keep your legs dry. Ribbed arch and ankle support provide a locked-in feel, and silicone security strips on the inner and outer elastic help prevent the socks from slipping during long rides.