COMPATIBILITY: The shoes are universally compatible with 2-bolt & 3-bolt cleats, including SPD, SPD-SL, LOOK Delta, Keo, Crank Brother and Speedplay, offering the perfect platform no matter what pedals you ride. The cleats included are fully compatible with all LOOK DELTA spin and road bike systems, and it's the same size as Peloton's cleats, so no need to adjust the pedal's tension when you're sharing one spin bike with other people. HIGHLY BREATHABLE DESIGN: The airflow goes through the mesh upper and perforated shoe tongues, then the heavily perforated EVA insole, and finally vents from the outsole, which has large air vents at the toes and heel positions. Every specific design is for the best heat dissipation and airflow, delivering all-day riding comfort and breathability. SUPPLE YET SUPPORTIVE: Upper, synthetic PU leather wraps your feet comfortably while proving enough support. 3 supple straps offer a strong closure with easily on-the-fly adjustability.