For example, according to Hoka's size chart, a Foot length of 254 mm equals a CM size of 26 and a US size of 9. But a Foot length of 258 mm equals a CM size of 26.5 and a US size of 9.5. Hoka men's shoe sizes Foot length (MM) US UK EUR CM (Mondo) 254 9 7.5 41.333...