Alpinestars Bionic Pro Plasma Knee Protectors, anatomically profiled for all forms of off-road riding.

The Bionic Pro PLASMA Knee Protector is designed to be lightweight, breathable, comfortable, and protective; it also features a removable Nucleon PLASMA knee protector incorporated into an abrasion-resistant construction on the outside and highly breathable on the inside for maximum performance.
Two independent thermoplastic shells are strategically positioned above the patella to improve abrasion resistance and sliding performance, while also offering additional impact protection.
The innovative sliding construction provides high levels of articulation while ensuring the protector stays comfortably in place.
The wide, elasticized top strap offers superior comfort and a secure closure.
Nucleon PLASMA is a viscoelastic material engineered with bio-based polymers and formed with a construction that is flexible in all directions while maintaining the ability to dissipate impact energy. Lightweight and highly ventilated, this knee protector provides strong impact dispersion and absorption, while ensuring maximum coverage in all riding positions.
Designed with thermoplastic shells that offer improved abrasion resistance and sliding performance, as well as impact protection.
The innovative sliding joint construction provides riders with high levels of articulation and a comfortable, snug fit that keeps the protector in place while riding.
Constructed with impact-absorbent, eco-friendly and sustainable material, USDA certified.
Made with a soft, tactile interior insert for increased rider comfort.
The pre-shaped construction features a perforated, soft-touch elastic insert for increased comfort and superior airflow; this is complemented by extra lower and lateral padding for extended coverage.
Anatomically sculpted silicone strips on the upper hem and calf keep the protector securely in place.
The Nucleon PLASMA knee protector is removable for easy cleaning.
The Nucleon PLASMA knee protector is CE-certified at Level 2 for effective impact protection.
Under current European law, the CE marking is a conformity requirement for the marketing of this product. The following standards apply:
Knee protector: EN 1621-1:2012 LEVEL 2