The Shimano RC810 road cycling shoe pairs a low-stack carbon sole with the DYNALAST 2. 0 last, shaped with a wider forefoot and reduced toe spring for a more natural fit through the pedal stroke. This build uses the narrow width for a closer wrap around the foot. Dual BOA Li2F dials cinch the upper down with independent forefoot and midfoot pressure, and a reinforced heel cup keeps the foot locked in through hard accelerations out of the saddle. What Our Gearhead(R) Experts Are Saying:"I can feel the difference in the sprint, the low stack puts my foot right on top of the pedal instead of a few millimeters above it, and that's where the power actually goes."