Leather uppers. TOMS leather products support responsible manufacturing via the Leather Working Group. Rubber outsole High-rebound comfort OrthoLite Eco X40-Hybrid insole made with 32% eco content including 15% hybrid materials, 12% bio-oil and 5% recycled rubber. Medial zipper for easy on and off Heel height is approximately 3 ¼", shaft height is approximately 5"