Salomon s S/Pro Supra BOA 120, for advanced skiers with medium volume feet, challenges traditional boot construction to improve levels of fit, performance and comfort. Clips over the foot are gone and instead BOA uses a cable system with 5 points of contact. The result is a better fit and less chance of creating pressure spots. Fit Medium volume fit with a snug rearfoot and especially generous toe box with a squared off shape. BOA ensures a consistent wrap. Shell PU Custom Shell with Power Spine, customisable. PU is a material with consistent density that ensures perfect wrapping, progressivity & good power transmission. The Custom Shell HD process aims to bring fast personalisation to the shell of your boots and the Powerspine delivers more power to your skis when you need it. Liner My Exowrap 4D Performance with thermoformable Talyn, Custom Tongue and Elastic Belt, mouldable. Anatomically designed pre-shaped Performance liner. Improves foothold, steering and ensures a precise, comfortable fit. Talyn provides a comfortable, initial fit and can be heated to improve the shape and precision if required. Works perfectly with the thin shell walls and BOA closure of the shell. The tongue can be re-positioned for the maximum comfort the Elastic Belt securely holds the liner in place, comfortably securing the foot.