UGG Australia Womens Charlotte Boot nubuck Heel measures approximately 3 inches" Insole: Poron foam-cushioned, leather lined heel with 7mm curly UGGPure forefoot. Heat-embossed UGG logo on footbed. Outsole: 3 stacked leather wrapped heel and 0.25 platform with molded rubber forefoot and heel tap. UGG logo metal heel tab and UGG feather logo on arch. Self-lined suede or nubuck ankle boot Back heel zipper with new UGG logo heel metal plate 4 " shaft height