ICE DANCE: EDEA SUPPORT INDEX: 80 The unique shell and thinner sole improve power transmission shortening reaction time. This gives greater control and precision for more defined movements and quicker transitions. The lower profile increases range of movement so you can express yourself and dance the edges. The ergonomic heel pocket ensures the optimum foot position and the memory foam holds without pressure. The shell is thermoformable and can be instant custom fitted in store Flamenco Ice are designed for you. Get back to full training quickly with the shorter break-in time. The SH microfiber lining dries more quickly, keeping you and your boots fresher for your next session. The Flamenco Ice is designed with a superior dual sole technology to reduce ice chatter giving you a smoother glide, connecting you with the ice.