Medicare / HCPCS code = A5500 diabetic shoe. Synthetic leather upper with mesh panels. Lace-up closure. Padded tongue, collar, heel and Phantom Liner® for best fit and comfort. Ortholite sockliner. PU strobel board. TRUFUSE® midsole - cushioning and compression foam ROLLBAR® posting system helps reduce rear-foot movement. Differential: 12 mm. Ndurance® rubber outsole in high-wear areas.