Alpinestars SX-1 Plasma Knee Guards

The SX-1 PLASMA knee brace integrates PLASMA knee protection into a highly ventilated semi-rigid structure for superior shock protection, while the integrated Dual Gear System (DGS) promotes natural knee articulation.
Main features:
Optimal comfort: Nucleon PLASMA knee protection is made of bio-sourced viscoelastic material. Its multidirectional flexibility molds to the knee and dissipates impact energy for reliable protection.
Double density co-injected chassis for unparalleled support and comfort: lower extension hollowed out in soft polymer to avoid pressure points. The same design is applied to the upper extension to avoid discomfort while riding.
Controlled natural movement: The Dual Gear System (DGS) incorporates toothed profiles on the upper and lower frames for smooth articulation promoting natural knee movement.
Ergonomic chassis in versatile sizes: SX-1 PLASMA knee braces have ergonomic chassis and rigid and flexible over-injected shells, ensuring secure support adaptable to various morphologies.
Patella System Protection: fully covers the patella regardless of the angle of extension, the rigid external shell protects against handlebar impacts.
Construction:
Lightweight knee protection with extended coverage
High-performance polymer upper and lower frames for optimal flexibility, strength, and lightness
The double hinge system integrated into the upper and lower frames follows the natural movement of the knee and keeps the protector securely in place while riding.
Ergonomic and slim frame design.
The double closure system includes a hook-and-loop strap and snap buckles for easy donning and a personalized and secure fit.
Protection:
Knee protection: EN 1621-1:2012 Level 1.