The color is heather gray, and the size is 24.0cm. The sole is sturdy and provides a sense of stability. As the name suggests, these shoes can be used for studio programs like Les Mills. They fit snugly and don't slip, even during intense movements. I usually wear 24.0cm, but because I have a high instep and wear thick socks, they felt tight, so I wore the next size up. Reebok LESMILLS Les Mills Les Mills Reebok Classic