Outside leather and synthetic upper/outsole HPS (High Performance Sun) dual density rubber housings with replaceable insert/F.C.S. (Flex Control System): System of fl ection controlled integrated with the upper/plastic injected rubber grip and custom shaped/duty leather/velcro adjustable/replaceable and adjustable aluminium lever closure Interior lining material polyurethane upholstered/Backup/ Padding with memory/insole Secretary Arne Duncan's remarks (Incorporated Steel Shank) covered in felt anti-shock/antibacterial Insole with replaceable A.P.S. (Air Pump System)