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RCS Carbonlite boot technology

Tue, Dec  2, 2008 - By Fischer

Marketing info from Fischer...

Fischer’s new Carbonlite Skate and Classic boots meet the requirements of World Cup champions and elite level skiers for control, security and power transfer. The anatomical last is the keystone of Fischer’s racing boot. Every major component of the boot is molded and formed in a three dimensional shape. The result of using this anatomical last and assembling the 3D parts around this last is that all of the boot components are in line with the anatomy of the human foot. Thus, the boot provides a better fit, a longer service life for the skier and the elimination of the boot components changing their shape over time.

RCS Carbonlite Skating



  • F5 Pebax Skating Sole
  • Lowest available foot to ski distance
  • World Cup Carbon Shell Skating
  • Carbon Flex Cuff with Canting

The F5 Skate Sole is the foundation for our RCS Carbonlite skate boot. The F5 Sole, exclusive to Fischer, is a triple injection sole. This means that every part of the sole is molded together in a one-step process, providing a long lasting sole with premium support and torsion stability. The rotation point of the sole is directly underneath the toe tip, enabling the skier to have a smooth, rolling foot action during the kick phase.

The F5 Skate Sole also has the lowest available foot to ski distance, which places the sole of the boot and the foot of the skier as close as possible to the ski. This lower stance of the boot provides stability, allowing the skier to be directly on top of the ski. Placing the foot closer to the ski allows the skier to be in a more balanced position when moving down the trail.

World Cup Carbon Shell Skating

The World Cup Carbon Shell Skating has an orthopedic design, engineered to provide optimum support and torsional stability for the skier. By using ultra-light and supportive Carbon in the places that are needed most for the skating technique, the foot is held secure and stable when skiing.

Carbon Flex Cuff

The Carbon Flex Cuff is an ergonomically shaped cuff, designed to fit securely around the calf and shin of the skier. The carbon flex cuff uses carbon stabilizers to provide lateral stiffness for support and control, while allowing high mobility in a forward flexing direction, allowing the skier to have ample ankle deflection in correspondence with correct skating technique.


Fischer has developed a Canting feature for the cuff of the Carbonlite Skate boot. This canting feature allows the skier to adjust the cuff up or down by a maximum of 4 MM. The cuff also adjusts medially and laterally, permitting the skier to either lower or raise the cuff on the inside or outside of the boot to customize the fit of the cuff to the individual.

The cuff is set in a neutral position. A canting key is supplied with every pair of skate boots, which allows the cuff to be raised or lowered by 2mm in each direction. To increase the support of the cuff, the cuff may be raised to the high position. Likewise, the cuff may be lowered to accommodate skiers who require less support.

RCS Carbonlite Classic



  • Lightest X-C boot on the market, 350 grams Size 42
  • F5 Pebax Classic Sole
  • Lowest Available foot to ski distance
  • World Cup Carbon Shell

F5 Sole

The F5 Classic Sole is the foundation of the RCS Carbonlite classic boot. The F5 classic sole uses the same triple injection molding process as the F5 Skate sole.

The F5 Classic Sole has the lowest available foot to ski distance, allowing the skier stability and a super soft flex for the best possible ski feeling when performing the classic kick. Placement of the rotation point directly beneath the toe tip provides the boot with a smooth, rolling action.

The World Cup Carbon Shell Classic is manufactured with a thermoplastic carbon matrix, which can be molded for a custom fit. This provides excellent stability for the entire foot at the most important point, the heel.

Not only is the outside of the boot important, but also it is also important to have the inner boot constructed and designed to hold the foot in a secure and comfortable position. Below are Fischer’s new innovative features that make the RCS Carbonlite boots the new model for stability, comfort and control in racing boots.

Snake Lacing

Snake Lacing is an innovative feature from Fischer available in our RCS Carbonite boots. This lacing system, whereby the laces are crossed only once, secures the foot in the boot independent of foot width and allows for equal pressure distribution throughout the foot. Our Neoprene Sock, which is lightweight, highly flexible, warm and breathable works in conjunction with the Snake Lacing system, eliminating the need for a tongue in the boot. In turn, this eliminates the possibility of wrinkles when flexing the boot and reduces the weight of the boot.

The Parabolic Lace Loops works with the Snake Lacing system to provide smooth and fast lacing when tightening the boots.

The Speed Lock is the final part to the Snake Lacing system. It allows the laces to stay securely fastened.

Arch Support Lacing

The Arch Support Lacing of the boot works with the Snake Lacing system to secure the foot in a comfortable and stable position. When the laces are tightened, the arch support lacing wraps and cradles the foot, distributing pressure evenly around the foot.

The Heel Fit Strap is an adjustable strap, allowing the skier to individually adjust the heel strap to the individual’s heel size and shape. This easily adjustable Velcro strap, works in conjunction with the Arch Support lacing system to secure the foot and heel within the boot, providing added stability and control where it is most needed.