Rockport World Tour Black Steel ShankSteel shank Rockport Women's Walking Shoe: Flexible Strobel construction to aid in walking. Walking platform supports the natural walking motion, by providing rearfoot motion control, and forefoot flexibility. Nubuck leather uppers for soft comfort. Rubber outsole with EVA midsole, provides superior traction grip, and shock absorption. Performance linining absorbs moisture to enhance breathability. Steel shank for durable midfoot support.