From Vionic, the Savannah Leather Chelsea Booties feature:  Water resistant leather upper with water resistant zipper Hidden gore inside zip closure  Back pull tab Synthetic lining  Built-in VIO MOTION Technology footbed featuring contoured arch support, with shock-absorbing cushioning, deep heel cup to provide stability, and forefoot flexibility Rubber outsole  Approx.  4.6" bootie shaft height Approx. 10" bootie shaft circumference Approx. 2.75" bootie heel height  Imported.