ACERBIS X-Leg Long SocksAcerbis has 35 Years of experience working with the best off road racers in the world and this results in constant technical developments to bring you the best riding gear and accessories. The X Leg technical riding sock combines a race sock and base layer into one single product. The result is no more irritation for motocross and enduro riders, as the X Leg does not move or curl, preventing direct contact between the knee brace and the skin. It