Adidas Codechaos 22 BOA, 27.5cm. It fits the foot securely and has good grip with soft spikes. Used about 3 times: some dirt is visible, but the outer mesh structure makes it difficult to clean. ① Direct foot BOA wrap directly holds the foot inside the shoe. ② Amazing grip even without spikes (studs). ③ Dial type for easy on and off. Size...27.5cm adidas/Model name...Codechaos 22 BOA Other...Soft spikes Thank you for viewing.