The SX Series from Lange offers a higher volume fit with a wider 102 mm last, creating a high performance boot for a medium to high volume foot. Featuring all of the key fit and performance features the brand has to offer, Natural Stance, a more neutral, upright stance delivering more efficient power transfer on the more modern skis shapes of today. The Custom Tongue features a Hollow instep area, providing maximum customization where circulation is most important, eliminating unnecessary pressure points.