






Children's ski boots -
Advice : Use the foot sizer from SIDAS to help you find the right size
The RSJ 50 Vibrant Blue is a unisex children's ski boot from the brand Lange, specially designed for on-piste use.
With a flex rating of 50, it is aimed at young beginner skiers, offering a good balance between comfort and support. Its Anatomic Junior Fit construction ensures a precise fit tailored to the shape of children's feet and calves, providing optimal support throughout the day.
This boot features 3 aluminium buckles that guarantee a reliable and durable closure, complemented by a 30 mm Powerstrap for enhanced foot hold. The Junior GripWalk soles offer a natural foot roll and increased walking comfort, while being compatible with specific bindings.
Its polyolefin shell ensures lightness and durability, ideal for supporting young skiers in their progression with safety and comfort.


- Junior Liner boot
- 3 aluminium hooks providing reliable closure and good resistance to wear
- 30 mm Powerstrap
- Compatible with Junior GripWalk soles
- Replaceable soles
Composition :
- Shell: polyolefin
- Cuff: polyolefin
- Hooks: aluminium
| ANATOMIC JUNIOR FIT | Anatomic construction adapted to the morphology of young skiers’ feet and calves to provide precise support and a tailored fit. |
| JUNIOR GRIPWALK | Soles designed to offer a more natural foot roll and greater comfort when walking. They are compatible with Junior GripWalk bindings. |
