I recently purchased these and wore them surfing once, but they were a bit too snug for my feet, so I'm reluctantly selling them. My usual shoe size is 25.5cm-26.0cm, and these are size 26cm. I think they would be a good fit for someone with 25cm feet or someone with narrower 26cm feet. Purchased for around 7500 yen. 26cm black neoprene boots with non-slip soles, perfect for marine sports. - Size: 26cm - Color: Black - Material: Neoprene - Sole: Non-slip Thank you for looking.