The Sidi T-5 is designed specifically for triathlon. The upper weathers rain and water without losing stiffness, and the closure system is easy to adjust and reliable, the T-5 is particularly suitable for giving your best during triathlon competitions. - The High Security Velcro closure is simple but reliable, easy to adjust and fine tune, especially on the bike - The newly designed integrated heel cup is light weight and reinforced to avoid deformations during strenuous rides - The Carbon Composite Sole 20 is composed of nylon and injected carbon fiber. The result is a light and rigid sole, which does not lose its characteristics when climatic conditions change or with the passage of time - The central part of the sole is graduated with millimetric scale for precise cleat position and fine tuning - For walkability, Sidi cycling shoes include a replaceable polyurethane heel pad