Alpinestars SX-1 Plasma Knee Guard

Expertly designed for off-road performance, the SX-1 PLASMA Knee Protector features a highly ventilated semi-rigid frame integrated with Nucleon PLASMA viscoelastic protection. The Dual Gear System (DGS) ensures smooth hinge function to support natural knee articulation while dissipating impact energy. This CE Level 2 certified protector delivers a secure, adaptive fit with a dual strap closure system for maximum comfort and stability. Construction Light-weight knee protection with extensive protective coverage Upper and lower frames are constructed from a high performance polymer for optimized levels of flexibility and strength as well as excellent weight saving properties The upper and lower frame’s integrated dual pivot hinge system follows the natural movement of the knee and keeps the protector well positioned while riding Perforated knee protector offers high levels of ventilation Frames feature a slim ergonomic design Dual strap closure system features hook and loop with snap-fit buckles for easy in and out and a personalized, secure fit Constructed from a USDA Biobased viscoelastic material, which is molded into a structure that is pliable in all directions while maintaining the ability to dissipate impact energy Dual density co-injected frame for a supportive structure with unrivaled comfort and adaptability: Engineered with a scooped lower extension made from a soft polymeric blend to avoid any pressure points associated with a hard edge from occurring as a result of the boot pushing against the protector Controlled Natural Movement — Dual Gear System (DGS), both the upper and lower frames have integrated gear profiles that ensure a smooth hinge function to promote the natural articulation of the knee Patella System is engineered to offer full coverage of the knee cup regardless of the degree of extension while the rigid outer Patella System shell prevents injuries from handlebar strikes