Product Description The H6 Leading Edge heel is a H5 rubber heel with a Velcro attached strip of slide material across the front edge to ease the transition from sliding to stopping. Packaged with three edge strips: (slow) S2 – for little slide before the brake, (medium) S4 – for more slide before the brake, and (fast) S6 – for the most slide before the brake.Small – Women’s 5 – 12Medium – Men’s 6.5 – 9Large – Men’s 9.5 – 15Trim to Fit