From FRANKIE4, the Nat III Tumbled Leather Sneakers feature: Tumbled leather upper Slip on with elastic gusset Wear with or without laces Leather footbed cover and lining with specifically placed rPET foam lining - made from recycled plastic bottles - to alleviate pressure and rubbing on the skin Sole Saver Pack®: enabling a regular, wide or narrow fit with our clever pack included in the box. Customize the fit to each foot Sole Saver Pack® includes a full-length Sole Hero Support Footbed, a half-length Sole Hero Support Footbed, and forefoot cushions Sole Hero Support Footbed – Podiatrist designed |with adjustable HEEL, ARCH & FOREFOOT SUPPORT.Triple Layer Support & Cushion System designed to help prevent and alleviate common foot pain symptoms “Goldilocks” heel counter - not too firm, not too flimsy Slip-resistant rubber outsole Flat heel Imported.