Fischer RC4 Pro MV DYN BOA Alpine Touring Ski Boots 2025

Product Details

Fit

Last: 100mm– A medium volume fit for most average feet

FISCHER Scan-Fit® Last– Next generation of last built leveraging hundreds of thousands of customer foot scans obtained through the FISCHER Scan-Fit® App. Guarantees an anatomic fit that provides increase power transfer and control.

Flex

Flex: 140– A very stiff flex for advanced to expert level skiers

Liner

Adjustable RC4 ZipFit® Innerboot– It is a "boot" that goes inside the ski boot shell! Co-branded product focused on durable, uncompromising performance with dynamic cork composite fit adjustment. Merino lined neoprene toe box ensures feet stay warm. Automatically adds at least 10 flex points of stiffness.

Shell Materials & Design

Carbon Infused Cuff– Pebax® Rnew cuff reinforced with carbon fiber for increased stability and stiffer flex. The best-of-the-best for skiers who demand ultimate performance.

Thermoplastic Urethane Cuff and Shell– Thermoshape polyurethane (TPU) material is the benchmark and industry standard for top race products, as it offers superior ski boot suspension compared to polyamid or polypropylene mixtures. TPU makes for a phenomenal ski experience due to the rebound and energy transfer characteristics. ZoneFit and Vacuum moldable at 120° C.

Stance

Adjustable Forward Lean

Buckles

BOA® H+i1 Fit System– Dialed in. Locked in. Confident. This new high power and high strength BOA® system was developed specifically for use on alpine boots to promote shell wrapping and pressure distribution. Precision fit with on-the-fly tightening and loosening. Releasable cartridge and bayonet system prevents breakages through impact.

Power Strap

Phatt Maxx Strap– 50mm wide power strap enhances power transfer and pressure distribution across cuff and liner tongue. Simple cam strap allows strap to be locked down tight but also easily adjusted.

Bootboard & Footbed

Grindable Bootboard– Specifically engineered to allow boot fitters to easily modifiy the height and angle of the bootboard. Dimples on the surface of the bootboard provide a reference point so that bootfiters can control and standarize their handiwork.

Sole

GripWalk® Sole– GripWalk® soles (ISO 23223) offer end users the ultimate in natural walking comfort, safety across slippery terrain, and ski performance. This is achieved through pronounced rounded shape and convex rib profile built with co-polymer rubber material.

Tech Toe Fittings

Specs

• Ability Level: Advanced-Expert More

  Ability Level

  
  
  Advanced-ExpertWhether you charge the steepest lines, hit the biggest jumps in the park or carve with race-like precision, advanced to expert level skis, snowboards, boots and bindings are for the more aggressive rider. In skis and snowboards, you´ll often find layers of metal, carbon or other stringers for rigidity and power, while advanced to expert level boots and bindings are usually on the stiffer side of the spectrum for rebound and precision steering.
  
  
  
• Ski Boot Flex: Very Stiff
  
• Forefoot Width: 100 mm More

  Forefoot Width

  
  100 mmForefoot width, or last, is the reference width for this model based off shell size 26/26.5. Larger or smaller shell sizes will diverge from this reference width in increments of 2mm for every full size.
  
  
• Liner Type: Semi-Custom
• Flex Index: 140
• BOA®: Yes
• Number of Buckles: 2 + BOA Lower Shell
• Boot Sole Type: GripWalk (ISO 23223), Tech Toe Only
• Warranty: 2 Years