Salomon S/Pro Supra Dual Boa 130 combines race-level stiffness with precise fit control. Its dual-zone BOA system delivers micro-adjustable lockdown for high-performance on-piste skiing. Key attributes: Gray aurora | Black | Race blue | Dual-zone BOA closure for precise fit | Flex index 130 for responsive control | Custom Shell HD for personalized shaping | Pre-mounted GripWalk soles for improved traction and walkability | Dual BOA dials for independent cuff and lower-shell adjustment | Adjustable/removable tongue | Removable performance footbed | Exowrap shell construction | Custom tongue design | Integrated BOA routing | Dimensions & fit: 100 mm last | Stiff flex (130)