Vionic Zen - Womens Walking Shoes - Orthaheel Black - 12 Medium Full-grain leather Imported Rubber sole Heel measures approximately 1 inches" Maintain a state of emotional balance with a soothing walk in the Vionic&reg; with Orthaheel&reg; Technology Zen Walker. Innovative, podiatrist-designed Orthaheel Technology provides superior orthotic support, relief, and stability to help realign the feet to their natural position. Research supports Orthaheel Technology's success in reducing over-pronation, which can help relieve associated common aches and pains, such as heel pain (plantar fasciitis), knee pain, and lower back pain. Received APMA Seal of Acceptance. Click here to view Seal. Recommended by Dr. Andrew Weil. First Ray Technology assists forefoot mobility and gait efficiency. Premium, full-grain, water-resistant leather uppers with colorful piping trim. Action lacing system for a flexible fit. Fabric lining keeps your feet cool and dry. Footbed features an antimicrobial top cloth to control foot odor. Removable, podiatrist-designed orthotic supports the feet and helps realign the lower legs, improving posture and balance. Lightweight, flexible EVA midsole absorbs shock