Merrell Women's Stefania Waterproof unknown Weather-Tight membrane creates a waterproof barrier to help keep feet warm and dry. Molded nylon shank provides superior arch support. Air Cushion centers the heel at impact for enhanced cushioning and stability. Full-grain leather / nubuck leather upper, mesh upper lining, EVA sockliner and insole... Molded EVA midsole, nylon shank, rubber outsole. Shaft Height: 4 inches.