Upper is patent finish faux leather with typewriter accessories permanently attached. Sole is synthetic rubber. Our Double Topping Mid Heels have a 2inch/5cm chunky heel and feature a generous toe box and extra cushioning in the instep for the ultimate in support and comfort. When sizing this style, match up with your Chocolaticas flats if you have them, unless you wear your Chocs quite snug, then you may want to size up one. If these are your first foray into the amazing world of Hot Chocolate Design, choose the size nearest your most-often purchased AU heels size - for example if you are usually an AU9, sometimes 9.5, choose US9/AU9.5/VZ39.