Fitflop Women's Laceless Derby Slip On BlackOn our all-day-cushioning, pressure-diffusing SupercomFF midsole technology. APMA Seal of Acceptance, for footwear found to promote good foot health. Ergonomically engineered, supercomfortable slip-on shoes. Leather uppers, with elastic panel across the front. Padded tongue for extra comfort. Leather/cotton twill-lined uppers and leather footbed allow your feet to breathe. Seamless built-in arch contour. Lightweight sole with hard-wearing, slip-resistant rubber pods American Podiatric Medical Association.