Details: 10 mm drop: due to variances created during the development and manufacturing processes, all references to 10 mm drop are approximate EVA (Ethyl Vinyl Acetate) footbed/heel pocket Forefoot Flex Grooves allow extreme flexibility IMEVA (injection-molded EVA foam) midsole for firm yet flexible cushioning Internal shank Leather upper Medicare / HCPCS code = A5500, may be eligible for Medicare reimbursement Non-marking outsole 52 durometer insert/midsole Style MX624WN2 is approved Medicare/HCPCS code = A5500, may be eligible for Medicare reimbursement. New Balance Men’s Mx624v2 Specialty