VIVIAN COLLECTION L size 24-24.5 cm 2023 new collection. The heel isn't high, so it's close to flat and easy to walk in, but the long middle toe of my Greek foot was hitting the top, so I repurchased a larger size. I'm selling these to someone with a low instep or small feet. If you don't have slender feet, it might be difficult to zip up. Those who are 22.5-23 cm would be best to wear them with insoles. I bought them on November 20th and only wore them twice. Shoe length: Mid-calf Color: Black Heel height: 3.1-5 cm Sole/Heel shape: Block heel Material: Faux leather