Factory seconds have minor flaws, creating a rather large discount. Sanita has high standards for quality. If something isn't just right, it is rejected as a first quality item. Features: polyurethane footbed and Nitril rubber outsole for slip resistance, leather-lined anatomically contoured footbeds, antibacterial midsoles, and a steel shank for stability. Moderate arch support and elevated heel. Sanita footwear is consistent with Dansko sizing and fit.