Polished leather uppers for a deep, rich finish. BOSTONIAN AKRON BLACK #20390 First/Flex Construction for flexibility and shock absorption. Quarter panel leather lining prevents irritation by keeping the feet dry. Leather lined padded footbed for added comfort. Oak tanned/buffed leather outsoles prevents foot fatigue (Please disregard the incorrect factory stamp that states man made outsole). Steel shank for support and classic styling with unprecedented flexibility.