K2 Cortex Jr BOA Ski Boots 2027

The Cortex Jr BOA gives strong young skiers the same quick, precise BOA® fit found on K2's adult boots. A junior-specific low-volume shell keeps the response sharp, and the dial makes getting in and out easy.

Who it's for: advanced junior skiers who ski aggressively and need a fit that is easy to adjust as they grow.

Key features

• BOA® Fit System – Turn the dial for a micro-adjustable, even wrap with no buckles to fiddle with
• EliteFit Plus Liner – Plush, roomier liner focused on comfort, good for wider feet
• GripWalk Outsoles – Rockered, removable soles that make walking easier and work with GripWalk bindings
• Low Volume MultiFit Last – Developed alongside BOA® for a close, secure hold on narrower feet
• Fully Heat-Moldable – Shell and cuff can be heat-moulded by a bootfitter to match your foot
• Fastfit Instep – Softer TPU over the instep to make getting in and out easier

At a glance

• Flex: 80
• Last width: 96-98 mm
• Shell: TPU shell, PP cuff
• Liner: EliteFit Plus
• Closure: BOA® Fit System
• Sole: GripWalk (ISO 23223 rockered, removable)
• Terrain: Freeride, Powder, Piste
• Ability: Advanced
• Sizes available: 23.5, 24.5, 25.5, 26.5, 27.5

Size guide