X521M – boss runner – blue
– Provides Maximum “Motion Control”- Open air sandwich mesh upper- Contrex™ external stability enhancer controls pronation- Carboplast® Footbridge for motion control & stability- Molded, external heel counter for extra rearfoot controlSizes: 61⁄2 – 13, 14, 15Widths: Medium (C/D), Wide (E/2E), X-Wide (3E/4E)