Fantastic First Fit and initial comfort with Flex Zone elastic transition between hard and soft boot areas. Snug heel and roomy forefoot for optimal fit. Awesome power transfer and response with internal Power Zone linked to the external Power Chassis. Optional fine-tuning with VACUUM technology.
Active Fit Zones Liner - RC Pro
The Fischer Active Fit Zones Liner System with 2-component design technology actively supports the foot in three defined function zones. The result: more comfort and performance thanks to a perfect fit which adapts dynamically to the movements and the anatomy of the foot.