The all new Diadora Sonic Triathlon Racing shoe comes with Regular Plus Last; it is a precise fitting with larger toe box for Triathletes with wider feet. This Diadora Triathlon cycling shoe is designed with two Velcro strap; 40mm strap for quick transition and small Velcro for fitting regulation. Micro fiber upper and Air mesh lining for ventilation and quick drying.

Removable Heel Pad; This anti slip heel pad is made of Duratech rubber for both the best grip and higher abrasion resistance. The Heel Pad is fixed by a screw and can be easily removed from the inside just by lifting the insole.

Insole; removable insole with ergonomic support in EVA on the heel area.

Outsole; Carbon Reinforced Dual Sole. The new Carbon Reinforced sole is made from nylon and carbon. The combination of the two materials guarantees superb rigidity for a better transmission of power to the pedals. The TPU upper improves the way the sole edge adapts to the shape of the wearer foot as well as absorbs vibrations transmitted by the pedal.