From FRANKIE4, the Wallace Woven Leather Mules feature: Leather upper Slip on Footbed cover and lining with specifically placed rPET foam lining - made from recycled plastic bottles - to alleviate pressure and rubbing on the skin Heel, arch, forefoot support Sole Hero Support Footbed – Podiatrist-designed | Built-in Gel Forefoot Cushions included in the box Triple Layer Support & Cushion System designed to help prevent and alleviate common foot pain symptoms Durable rubber sole Approx. 0.50" heel height Imported