Fi'zi:k cycling shoes are developed with a focus on physiological and anatomical research to ensure the best fit and functionality. The Tempo R4 takes this approach with its new Overcurve pad design. Asymmetrical collar hugs the foot repeating the natural movement of the bony protrusions of the ankle providing a comfortable fit without pressure points or discomfort. It is secured with a micro-adjustable Boa disc ensuring uniform tension of the foot.