The Lange RS 90 SC is ideal for experienced skiers, ski instructors, and racers seeking speed, power, and precision on snow.

All-around performance for lighter skiers. The RS 90 SC features a shorter cuff and a flex tuned for smaller or lighter-weight skiers. Speed and power transmission are maximized through race-proven technology and wind tunnel-tested aerodynamic design.

In the RS, Lange combines the targeted power of Dual Core construction with an anatomical, foot-hugging design. The boot responds to every movement as a natural extension of your body, maximizing efficiency and explosive power in every turn. A 90 flex is perfect for lighter skiers looking for a high-performance boot with a softer flex.

Highlights

Enhanced power, rebound, and control
Dual Core technology fuses hard and soft plastics for precise power transmission and a responsive flex, delivering more energy, agility, and control.

Sleek and more aerodynamic than ever
Thanks to Lange’s partnership with the Sauber-Alfa Romeo Formula 1 Racing Team, the RS race boot is more aerodynamic than ever. Together, they’ve developed the most streamlined ski boot on the market. The “Air Flow” concept, born in the lab, shapes the future of the sport with optimized 3D-molded shell contours and new low-drag buckles to reduce air resistance.

Reinforced performance
The Suspension Blade design connects the upper and lower boot for smooth energy absorption and transfer, giving you more usable power for skiing.

Adjustable flex
With replaceable elastomers at the boot’s pivot points, you can fine-tune the flex to your style. Choose from four elastomers with different stiffness ratings for a personalized feel.

Optimal comfort, precise control
Customizable Dual 3D liners are pre-shaped around the foot and ankle to deliver optimal comfort and precision—letting you ski longer and harder.

Lightweight and durable
Aluminum buckles reduce weight while improving durability and provide a secure closure for lasting performance.

Precise low-volume fit
The 97 mm last is designed for low-volume feet or skiers who want a snug, performance-oriented fit without sacrificing comfort.

Details
• Dual 3D Performance liner
• Premium footbed
• Custom tongue
• Shell: Polyurethane
• Cuff: Polyurethane
• External canting adjustment
• Reinforced sole
• 30 mm power strap

Technology

Aero Design
The "Air Flow" concept, developed in Lange’s lab, pushes the limits of ski boot design by optimizing the 3D-molded shell and buckle shapes for reduced drag and improved aerodynamic efficiency.

Race Flex Adjust
A rear-mounted plate improves energy transfer between the cuff and shell, replacing the traditional dual-screw setup. The softer insert option allows you to soften the flex without introducing play or losing energy.

Information on EU Regulation GPSR 

Name of the manufacturer: Skis Rossignol SAS
Postal address of the manufacturer: 98, rue Louis Barran, 38430 St. Jean de Moirans, FR
Electronic address of the manufacturer: customerservice.dl@dynastar-lange.com