What is the 3F System®?
Salewa’s 3F System® is an innovative footwear technology that blends three key elements essential for alpine performance: Flexibility, Fit, and Support. This unique design delivers precision, stability, and freedom of movement without compromise, meeting the dynamic needs of modern mountaineers and outdoor adventurers.
The system integrates advanced materials and engineering principles to reinforce the natural biomechanics of the foot, ensuring superior comfort and performance across technical and rugged terrains.
The 3 core functions
Flex
Salewa’s 3F System® ensures natural movement with anatomical ankle flexibility, secure instep-to-heel connection, and strategically placed materials to reduce fatigue—delivering control without restriction.
Fit
The 3F System® locks the heel, customizes volume with MFF+ (Multi-fit Footbed) or C.F.F (Custom-fit Footbed) and fine-tunes fit with climbing laces—eliminating slippage for all-day precision and comfort.
Support
The 3F System® delivers lateral stability, a dynamic heel lock, and flexible ankle support—ensuring control, balance, and confidence on any terrain.
Key Benefits of the 3F System®
- Enhanced Performance: natural foot movement combined with precision support ensures agility and stability in alpine conditions.
- Reduced Fatigue: strategic flexibility and dynamic fit minimize energy loss and foot strain over long durations.
- Improved Comfort: customizable fit systems and anatomical designs adapt to individual foot shapes for a glove-like feel.
- Optimized Safety: secure heel hold, lateral support, and ankle flexibility reduce the risk of twists, sprains, or injuries.
Why Choose Salewa’s 3F System®?
The 3F System® is a culmination of biomechanical research, innovative design, and user-tested performance, delivering the ultimate combination of freedom, precision, and support. For those who dare to explore the toughest environments, the 3F System® ensures every step counts.
“Move Freely. Conquer Confidently.”
