Shimano Women's WM53 Mountain Shoes. The Shimano Women's WM53 delivers superb performance and an exceptional value in a mountain bike shoe. Its glass fiber reinforced nylon sole ensures plenty of stiffness for pedaling efficiency while providing just enough give when it comes time to negotiate a hike a bike section of trail. The synthetic leather and mesh upper is comfortable and breathable while the triple Velcro strap retention system ensures a precision, easy to adjust fit. Additionally, an aggressive tread delivers plenty of traction and is designed to shed mud.