It's 27 cm. I've used it for about six months. I used a different insole, so the included one has only been used a few times. Please understand that there are scratches and stains. The box has a different product number, so please be aware of that. New Balance FuelCell spike shoes, navy/white color scheme, providing excellent grip. - Brand: New Balance - Model: FuelCell - Color: Navy/White - Condition: Some signs of use Thank you for looking.