The Salomon S/Pro Supra 100 GW Ski Boots are a great choice for advanced to expert skiers serious about dialing in their fit. Their mid-volume last hits the sweet spot in comfort and performance for many foot types, with 3D instep shell technology to minimize pressure over the forefoot and a snug, locked-in fit around the heel to keep you in control no matter what. Salomon's excellent Custom Shell HD process makes it a breeze to heat mold the shell to your anatomy, providing a truly personalized fit for the best possible performance on the slopes.