Alpinestars Bionic 5S Youth black red motocross knee braces

The innovative hybrid frames are constructed from a flexible composite over-injected with a high-performance fiber-reinforced polymer that provides optimal structural integrity and support while being ultralight and adaptive.

The extremely stable slim design four-point hinge system perfectly follows the knee joint and absorption ensuring maximum coverage area in all riding positions.

The lightweight, highly ventilated knee protector offers strong impact force dispersion and absorption while ensuring maximum coverage area in all riding positions.

The frame system reduces the risk of sustaining injuries to: Medial and lateral collateral ligament.

The anterior and posterior cruciate ligament.

The lateral and medial meniscus.

Slim ergonomic design for driving comfort during dynamic movement.