The LEATT X-Frame Hybrid Knee Brace features a carbon composite frame combined with a separate sleeve with an AirFlex Impact Gel knee cup. This combination with the hard-shell slider provides ultimate wearing comfort and reduces the forces to minimize the risk of knee injuries (ACL, meniscus, and MCL). The asymmetric hinges and the 40% slimmer inner hinge ensure an excellent feel on the bike. The outer hinge with metal gearing ensures precise movement and durability. It is certified as a medical device (EU CA014741, USA FDA 10048761) as well as CE-tested and certified as impact protection (Knee EN1621-1). Hyperextension limitations of 5°, 10°, 15°, and 20° prevent ligament injuries. Flat shin guard that fits into all boots. Comfortable and easy-to-install strap system, customizable fit with interchangeable hinge pad sizes.