Designed to build confidence and skill from the ground up, the Lange RSJ 65 is the ideal blend of comfort, control, and junior-specific performance. Built for young skiers up to age 12, this boot delivers an easy, progressive flex that helps developing racers and all-mountain skiers stay balanced, warm, and in control all day long.

The mono-injected polyurethane shell offers durability and smooth energy transfer, while Lange’s Anatomic Junior Fit is carefully shaped for smaller calves and foot volumes—eliminating pressure points and maximizing comfort. A supportive Control Fit junior liner, four aluminum buckles, and a secure 30 mm power strap ensure a snug, confidence-inspiring hold that encourages proper technique without overpowering lighter skiers.

From first gates to full days on the mountain, the RSJ 65 provides young athletes with the support they need and the comfort they’ll love.

Features

• Flex Index: 65 (junior-specific, progressive)

• Fit: Anatomic Junior Fit

• Shell: Mono-injected Polyurethane

• Liner: Junior Control Fit liner

• Closure: 4 aluminum buckles + 30 mm power strap

• Cuff Material: Lyfran

• Bootboard: Polypropylene

• Soles: Mono-material, Junior GripWalk® compatible

• Spoiler: GripWalk compatibility

• Design: Aero Design approved by Sauber Engineering

Junior-Specific Performance

The RSJ 65 is engineered to match the strength, weight, and biomechanics of young skiers, offering a flex that’s supportive yet forgiving for skill development.

Anatomic Junior Fit

Tailored for smaller calves and feet, this fit enhances comfort, warmth, and control—helping kids ski longer with better balance.

Durable Polyurethane Shell

PU construction delivers reliable rebound, smooth flex, and long-lasting durability season after season.

Secure & Easy Closure

Four lightweight aluminum buckles provide even pressure distribution and easy adjustment for growing feet.

GripWalk® Compatibility

Junior GripWalk-compatible soles improve traction and natural walking comfort (kits sold separately).

Replaceable Soles

Mono-material toe and heel pieces can be replaced to extend the life of the boot.

Specifications

• Age Range: Junior (approx. 12 & under)

• Flex: 65

• Last: Junior-specific

• Shell Material: Polyurethane

• Cuff Material: Lyfran

• Buckles: 4 aluminum

• Power Strap: 30 mm

• Boot Sole: Mono-material, replaceable

• Walking Compatibility: Junior GripWalk® compatible