Weather-resistant leather uppers. TOMS leather products support responsible manufacturing via the Leather Working Group. Rubber outsole. Removable Custom CloudBound™ foam insoles for all-day comfort and support. Anti-bacterial sock liner. Dual gore for ease of entry. TPR Welt: A lightweight rubber that's durable, flexible and provides traction. Outsole height is approximately 1 1/2". Shaft height is approximately 6". Your TOMS purchase helps support children's education, health and well-being, giving kids everywhere the gift of better tomorrows.