From FitFlop, the Neo-D-Hyker Suede Ankle Booties feature: Suede, leather and rubber upper APMA Seal of Acceptance, for footwear found to promote good foot health Slip on Back pull loop Polyester fleece lining Leather footbed Engineered with Neodynamic™ technology Slip-resistant rubber outsole Approx. 1.5" wedge height Imported.