K2
Roxa Sonic 3 GW Jr Ski Boots 2026
$144.99
Sale price
$144.99
Regular price
$179.99
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The SKI BOOTSONIC 3 is a junior-focused overlap two-piece ski boot built for growing skiers who need a reliable, easy-to-use package. Its PP/PP shell and three aluminum buckles give durable, straightforward closure while the Junior Comfort liner and 102 mm Biofit last prioritize a comfortable, ski-specific fit. GripWalk-compatible Alpine sole and binding system keep compatibility flexible across modern junior bindings and platforms. Available in sizes 17.5-24.5 (see conversion page).
Tech Specs
Architecture
Overlap - 2 piece
Material
PP/PP
Buckles
3 Alu
Liner
Junior Comfort
Sole
Alpine / GripWalk
Binding System
Last
102 mm Biofit
Sizes
17.5 - 24.5 (CONVERSION PAGE)
| Size Range (Mondo) | 17.5 - 24.5 |
|---|---|
| Last Width | 102 mm (Biofit) |
| Shell Material | PP/PP |
- Overlap two-piece construction for straightforward entry and support
- Three aluminum buckles for durable, adjustable closure
- Junior Comfort liner tailored for young skiers
- Alpine / GripWalk sole and binding compatibility
- 102 mm Biofit last for a balanced junior fit