The Rollerblade Macroblade 100 3WD Inline Skates have been built for the experienced skater and racers. There is a higher boot cuff design that provides superior lateral support and paired with three 100mm wheels it creates greater velocity for intermediate to advanced levels and the SG9 bearings give you a smooth, comfortable roll. The engineered mesh upper provides breathability and comfort that your feet are sure to enjoy. A cuff buckle, power strap and speed laces provide a secure and comfortable fit.