Sidi T3 Carbon Air White/Black Vernice: The NEW T3 Carbon AIR features a super-perforated triathlon-specific upper for maximum drainage and ventilation, with a plush, brushed interior for sock-free comfort for fast transitions and supreme comfort on the bike leg. Like all SIDI carbon soles, the Eleven Carbon/Composite Sole® is designed for maximum stiffness and power transfer, but it’s also engineered with a small degree of controlled flex in the toe area, which relieves plantar tendon strain during the pedal stroke. Translation: The T3 gives you legs on the bike, and saves your legs for the run.