Rollerblade Women's Speedmachine RX 100 Skate Ladies specific performance skate ideal for long training sessions and super smooth/fast skating Fiber Tech 3/4 high shell for an incredibly supportive fit and true performance Precision 5 Star Fit ladies specific liner system comfortable and highly breathable Ratchet micro adjust cuff and instep buckle with NEW asymmetrical performance lacing system Rush extruded aluminum 12.8" 325mm frame with racing axles Spiral HP 100mm/84A SG9 Bearings