USED (DEMO) 2026 Fischer RC4 105 MV VAC BOA — Mondo 25.5 (296mm BSL)

The 2026 Fischer RC4 105 MV VAC BOA is a high-performance all-mountain boot designed for advanced skiers who want a reactive, "sporty" feel without the punishing stiffness of a race boot. This Medium Volume (MV) model features a 100mm last, providing a comfortable but secure fit for average-width feet. The standout feature of this 2026 model is the BOA® H+i1 Fit System, which replaces the lower two buckles. This system allows for millimeter-precise tensioning, wrapping the shell uniformly around the foot to eliminate pressure points on the instep. Combined with Fischer's VACUUM plastic, this boot is highly customizable for those who need specific shell adjustments. Technical Specifications Year: 2026 Brand: Fischer Model: RC4 105 MV VAC BOA Mondo Size: 25.0 / 25.5 (Shared shell) Boot Sole Length (BSL): 296 mm Flex Index: 105 (Medium-Stiff / Advanced) Last Width: 100 mm (Medium Volume) Shell Material: VACUUM TPU (Heat-moldable) Fit System: BOA® H+i1 (Lower) + 2 Micro-adjustable Alloy Buckles (Cuff) Power Strap: 35mm Velcro Strap Sole: GripWalk® Performance Profile Versatility: The 105 flex is the "sweet spot" for many advanced skiers—stiff enough to drive a carved turn on ice, but with enough "give" to be comfortable in bumps, trees, and variable terrain. Customization: The VACUUM shell is a major advantage for used boots. If the previous user had wider feet, a professional bootfitter can use the Vacuum process to mold the shell back to its original shape or customize it specifically to yours. Anatomy: Built with SOMA-TEC®, the boot positions your feet in a natural "V" stance, which improves balance and reduces the torque on your knees during transitions.