BRAND NEW, Apex X521 Men's Boss Runner - Navy Blue/White. Size 11.5 M. Apex Running and Walking footwear are constructed with the most advanced technological features and represent the highest standards in performance and comfort. Our X-last collection is designed for superior motion control, and ultimate midfoot and rearfoot stability. It is designed to protect the foot and provide comfort and pain relief when walking. X-Last Features: 5/16" removable depth in 2 layers for fitting flexibility, Firm heel counter for optimal rearfoot control, High and wide toe box, Moisture-wicking polyester, antimicrobial mesh lining, Multi-density midsole with reinforced shank for torsional rigidity, Breathable, open air mesh and leather uppers, Soft, padded heel collars, Approved for Diabetic Feet. X Last shoe styles are recommended for those who have bunions, arthritis, diabetic feet, plantar fasciitis, or who need shock removable insoles, high/wide toe box, adjustability, stability, traction, X-wide widths.