Bionic Flex Knee Protector MX21 Replacement cheek pad set for

Replacement cheek pad set for Alpinestars Supertech M10 Helmets

Featuring a lightweight micro ripstop and 600D poly-fabric construction for enhanced durability

Both the front and rear hard shell plates are backed with a padding for a secure and comfortable snug fit

• Polypropylene insole with steel shank co-injected for rigid comfort and safety

Engineered with premium fabrics that offer lightweight

Bionic Flex Knee Protector MX21 Replacement cheek pad set forEngineered for off road riders, the Bionic Flex Knee Protectors are Alpinestars MX knee protectors delivering flexible, ventilated impact protection for motocross. Featuring highly perforated Nucleon Flex Technology protectors externally on a breathable stretch mesh sleeve, they are CE certified to EN 1621 1: 2012 Level 1, with an elasticated top strap and silicone hems for secure positioning, improved ventilation, and unrestricted movement, plus an