Nubuck leather uppers. TOMS leather products support responsible manufacturing via the Leather Working Group. Non-removable Custom CloudBound™ foam insoles for all-day comfort and support. Dual gore for easy on and off. German sole forefoot and rubber heel. Stacked leather-wrapped heel. TPR Welt: A lightweight rubber that's durable, flexible and provides traction. with stitch. Heel height is approximately 3/4". Shaft height is approximately 5". Your TOMS purchase helps support children's education, health and well-being, giving kids everywhere the gift of better tomorrows.