Triathlon shoes with advanced for and performance technology. Key Features: Integrated seamless midsole and upper construction set a new level of fit, stability and lightweight performance.,Low stack height midsole stabilizes foot and maximizes power transfer efficiency.,T1-Quick strap and extra-wide collar simplifies foot entry and quickens transitions.,Quickly secure shoe during transitions with easy to grab asymmetrical heel loop.,3D breathable mesh improves airflow and dries quicker.,Lightweight glass fiber reinforced nylon sole for power transfer.,Adaptable cup Insole..