Hand stitched Opanka(TM) construction for maximum flexibility. Pillow Cushion(TM) footbeds with DRYZ® moisture control. Gel Cell(TM) heel inserts to cushion every step you take. Electro-static dissipative technology to neutralize static electricity. Non marking, custom made Vibram® AeroGrip(TM) soles for dependable traction. Available with a steel toe. Treat your feet with respect. Birch Leather. Leather Lined. Sewn In Pillow Cushion(TM) Footbed