Nubuck leather uppers. TOMS leather products support responsible manufacturing via the Leather Working Group. Molded TPR Outsole - A lightweight rubber thats durable, flexible and provides traction. Microfiber lining. Lateral side gore for easy fit. Medial side zip. Heel height is approximately 1 1/4". Shaft height is approximately 5 1/2. Your TOMS purchase helps support childrens education, health and well-being, giving kids everywhere the gift of better tomorrows.