The K2 Alexis 90 BOA Women's Inline Skates are supportive and comfortable with K2's patented SoftBoot (fixed liner - not removable). An ideal skate for cruising around with the 90mm 83A wheels (TwinCam ILQ7 Bearings), and die-cast aluminum frames (not adjustable - not removable). Excellent ventilation and support of the Stability Plus Cuff also make it a great low-maintenance fitness (or cross-training) skate. With the simple turn of a dial, BOA lacing (guaranteed for life) pulls the laces onto your boot evenly and perfectly!