Using the highest quality materials and construction techniques, the Proof is built for speed, stability and performance. Its ultra-light design and superior fit, combined with excellent response and heel hold, makes the Proof ideally suited to the challenges over any terrain. The K2 Access System with Shell Locked Harness, combined with the upgraded Vibram "Ultra-Light" sole and new Boa Coiler, make this a truly unique boot. Taking support and performance to a new level of innovation.
- Liner: K2 Access System with Rock Lock BOA Harness, Light-fit Pro Liner & Boa Coiler
- Sole: Vibram "Ultra-Light" Sole with air cell heel and full length Phylon midsole.
- Lacing: Cast metal speed hooks for added durability.
- Details: Ergo heel pull for ease of entry. AFS Removable Tongue Support. 3D Formed Tongue.
- Materials: Full grain leather with action leather and synthetic leather detailing.
- Reinforcement: Formed leather toe and heel cap. Cast metal lace protectors.
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