Vionic Zen - Womens Walking Shoes - Orthaheel Silver - 10 Medium Full-grain leather Imported Rubber sole Removable, podiatrist-designed orthotic insole helps support, stabilize and naturally realign your feet for better posture and balance. Soft, leather upper with a lace-up system offers a customized fit. Durable, textured rubber outsole provides traction to help keep you confident on your feet. Deep heel cup and raised arch support help hold your foot in the proper position on the footbed. Removable EVA insole lets you replace it with your own orthotic.