I used these once for running practice, but the five-finger design didn't suit me, so I haven't used them since. I don't remember the size, but I bought them to fit my feet, which are 24.5 cm. These are breathable black and red five-finger socks that offer a comfortable fit. - Color: Black and red stripes - Design: Five-finger socks - Material: Breathable fabric - Logo: Red embroidered logo Thank you for looking.