Mens giro privateer r mtb cycling shoes 2017 the privateer r features a nylon and rubber co moulded outsole for durability and improved grip on rocks or roots the reinforced toe box boasts a rubber toe guard for improved durability yet comfort reigns supreme with a supple microfiber upper two straps and a micro ratcheting buckle those features combined with the stiff and efficient nylon outsole create a shoe that rivals the performance of more expensive composite designs other highlights in