Scarpa Instinct VS Size EU41.5. I used these aggressively, enduring the tight fit, but I couldn't bear it anymore, and my performance wasn't improving, so I'm selling them. My actual foot size is 27cm, and these are quite tight. I think they would be a good fit for someone around 26cm. They show considerable signs of use. I used them outdoors on rock for about six months, wearing socks. There's some rubber peeling and fraying on the pull tabs, so please be aware of this before purchasing.