Built for race day, the Shimano RC903 S-PHYRE Cycling Shoes feature a combination of high-performance technologies that allow you to go the distance, faster. With the women's specific DYNALAST technology, you are provided with an ideal balance of support and comfort that creates a more natural fit for a women's foot shape. Combine this with optimum stiffness and an anti-twist heel cup, and you are sure to feel a reduction in fatigue and an increase in power transfer and pedal efficiency. A crossover lace pattern with dual BOA Li2 dials distribute even pressure across your foot, eliminating pressure points and hot spots for a comfortable, secure fit.