120 Made for both uphill and downhill adventures, Salomon&';s Shift Alpha BOAA(R) 120 boots combine freeride versatility with alpine ability. The FreeSpine(TM), connecting cuff and shell, offers unparalleled power and control, while the Exobelt(TM) and BOAA(R) Fit System deliver micro-adjustable, precision fit engineered to perform in the toughest conditions. Weight per unit: 3 LB, 14 OZ Width: Narrow Compatibility Norm: Gripwalk - Adult Level of Practice: Advanced Stiffness: Hard Flex Value: 120 1 screwed BOAA(R) Fit System The BOAA(R) Fit System delivers micro-adjustable, precision fit engineered to perform in the toughest conditions. It also offers superior heel hold and edge-to-edge control. Increased uphill performance This redesigned SkiWalk and FreeSpine offer a wide range of motion and progressive alpine flex, while the horizontal closing position prioritizes safety and durability. Exceptional foothold The claw strap, Exobelt, and BOAA(R) Fit System keep your foot close to the shell, ensuring increased stability, minimal heel movement, and efficient power transfer.