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THE WORLD’S MOST TRUSTED KNEE BRACE HAS EVOLVED. The K4 3.0 delivers a more natural fit, greater comfort and proven protection. Powered by Human Motion® technology and refined through years of real-world testing.
IMPACT MODIFIED FRAME
Impact Modified Frame is tough, lightweight and low profile, while adaptive cuffs move naturally with your leg for all-day comfort, wherever the ride takes you.
NEXT-GEN 3.0 HINGE & LIGAMENT SYSTEM
Engineered for natural movement and maximum protection, the Human Motion® hinge helps redirect forces away from your knee ligaments while delivering smooth motion through a full range of movement. Featuring stronger Synthetic Ligaments™, a reinforced hinge housing, integrated knee capture system and new snap-in hinge pads, the K4 3.0 delivers improved protection, comfort and durability with less maintenance.
FULL COVERAGE IMPACT PROTECTION
Completely redesigned impact guards deliver proven impact protection with improved airflow to keep you cool and comfortable. A new secure mounting system keeps the guards firmly in place while allowing quick and easy removal for multi-sport use.
ADAPTIVE CUFFS
Designed to comfortably fit a wide range of leg shapes, the K4 3.0 Adaptive Cuffs flex naturally to accommodate muscle movement and expansion during activity.
This adaptable design helps reduce pressure points, evenly distribute forces and keep the brace securely in place, delivering a comfortable, supportive fit without restricting movement or compromising performance.
FLEX GRIP FRAME LINERS
Bonded directly to the frame, FLEX Grip liners help lock the brace in place, reducing movement and bulk while minimizing maintenance. The non-absorbent material resists sweat and moisture, keeping the brace fresh, comfortable, and odour-free ride after ride.
- Alleviates Odor
- Assists with Impact and Vibration absorption.
- Captures the leg to lessen migration.
- Promotes air flow to keep you cool.
- Splash resistance to some oils and fuels.
- Zero water absorption for multi-sport use.
DIAL IN YOUR FIT
1. Adjustable Extension Control – set your preferred extension limit to 10° – 20° to suit your riding style. Progressive extension control helps soften full lockout by slowing the joint before it reaches full extension, reducing jarring impacts on the knee.
2. Snap-in Hinge Pads – The brace is supplied with thin hinge pads installed, and a set of thicker pads in the owner’s kit, giving you the flexibility to dial in the fit that’s right for you.
3. Multisport ready – From the track to the trail, the waves to the snow, the K4 3.0 adapts with you. Removable impact guards allow you to switch between sports in just a few minutes.
Features
- Human Motion® Hinge System – Moves naturally with the knee to improve control, stability, and reduce joint stress.
- Impact Protection System – Absorbs and disperses impact energy to protect the knee while maintaining flexibility.
- Low‑Profile Bonded Padding – Eliminates movement and bulk for a locked‑in fit, better feel, and all‑day comfort.
- Refined Fit & Ergonomics – Improved brace alignment and strap positioning enhance comfort, stability, and knee capture.
- Adjustable Extension Control – Progressive extension stops reduce harsh lockout and allow customized protection levels.
- Multi‑Sport Versatility – One brace adapts across moto, MTB, water sports, snow, and everyday performance use.
- Simplified Strap System – Faster, easier fit with consistent tension and improved comfort every ride.
Ready Out of the Box – Fully equipped and adjustable with no additional parts required.
