Suede and leather uppers. TOMS leather products support responsible manufacturing via the Leather Working Group. Non-removable high-rebound comfort OrthoLite® Eco X40-Hybrid™ insole made with 32% eco content including 15% hybrid materials, 12% bio-oil and 5% recycled rubber. Dual gore and heel pull tab for ease of entry. Leather-stacked wedge. Wedge height is approximately 2 ¾", shaft height is approximately 3 1/2". Your TOMS purchase helps support children's education, health and well-being, giving kids everywhere the gift of better tomorrows.