Nurse Mates Womens Macie Low Top Lace Up Walking Shoes Synthetic Synthetic sole Heel measures approximately 1 inches" ASTM-tested thermoplastic rubber outsole provides slip-resistant traction to help keep you steady on your feet. Full-grain leather upper is stain-resistant for easy care. Removable EVA / memory foam insole offers cushioning and molds to your foot, absorbing pressure and distributing it evenly as you walk. Padded collar provides a better fit for comfort around the ankle. Four-eyelet tie offers a better fit at the instep.