First we made a cycling shoe with a focus on best fit and comfort - then we made sure it was as aerodynamic as it could be. The heel lever closure system locks your foot in securely with a single motion directly to your pre-set desired tension. The closure applies even pressure across the top of your foot with the padded upper without constriction or squeezing from the sides. The closure and the sole are optimized to reduce aerodynamic drag throughout your pedal stroke.