The R3 Derby Speed Skates are a perfect combination of performance and value that has made the R3 the most popular skate we sell. The Derby style R3 has some nice features including a special grade of vinyl that is more durable than standard vinyl and a detailed boot construction process that was developed from our decades of boot-making experience. Derby is a demanding sport though, so to ready the R3 for derby use, we added black tough scuff leather toe caps to prevent abrasion, reinforced PowerDyne Thrust nylon plates for a firm base, and 88A Radar Flat Out wheels that grip on all kinds of surfaces.