Upper made with premium leather or textile depending on style. Buckle at side for adjustable width. Breathable leather lining. Microwobbleboardâ"¢ EVA midsole features a high-density heel, low-density midsection, and mid-density toe cap. Please click here for a video about Microwobbleboard technology. Carries the American Podiatric Medical Association (APMAâ"¢) Seal of Acceptance. Textured synthetic outsole.