USED (DEMO) 2026 Fischer RC4 105 MV VAC BOA — Mondo 23.5 (276mm BSL)

The 2026 Fischer RC4 105 MV VAC BOA is a premium all-mountain boot designed for advanced skiers who want a reactive and precise feel without the crushing stiffness of a race boot. This Medium Volume (MV) model features a 100mm last (at 26.5), which scales down to approximately 98mm in this 23.5 size, offering a balanced, performance-oriented fit for average-width feet. This specific used set is a massive "pro-build" upgrade because it has been swapped with ZipFit Liners. While the stock boot comes with a standard foam liner, the ZipFit uses a cork-composite that never "packs out," providing the most consistent heel hold and energy transfer available in the industry. Technical Specifications Year: 2026 Brand: Fischer Model: RC4 105 MV VAC BOA Mondo Size: 23.0 / 23.5 (Shared shell) Boot Sole Length (BSL): 276 mm Flex Index: 105 (Medium-Stiff / Advanced) Last Width: ~98 mm (Medium Volume for this size) Liner: ZipFit Upgrade (Premium cork-composite) Shell Material: VACUUM TPU (Highly heat-moldable) Fit System: BOA® H+i1 (Lower) + 2 Micro-adjustable Alloy Buckles (Cuff) Power Strap: 45mm Phatt Maxx with QuickFix Cam Sole: GripWalk® Performance Highlights BOA® Precision: The BOA system pulls the shell downward and backward simultaneously. In a 23.5 size, this helps prevent "toe bang" by pulling your heel deep into the ZipFit’s cork pocket. VACUUM Fit: The shell plastic is designed to be heated in a Fischer oven. Even though these are used, a bootfitter can "reset" the shell using the VACUUM process to mold it precisely to your foot shape. ZipFit Power: The cork liner provides a much "damper" feel than foam, absorbing high-speed vibrations on hardpack while providing an uncompromising connection for technical carving. SOMA-TEC®: Aligns your feet in a natural "V" stance, which is especially beneficial for smaller skiers as it reduces fatigue and torque on the knee joints.