bionic flex knee protector black red Size:S/M Incorporated stretch inserts for fit

Incorporated stretch inserts for fit and ventilation ports for airflow and breathability

Featuring an innovative performance fit design

The Kids Racer Jersey comes in two distinctive and aggressive color combinations and is designed to match the Kids Racer Pants for a total performance look and feel

Secure And Personalized Fit With Sas (Size Adapter System) For A Versatile Fitment In Size Ranges Xs/M And L/Xl

Featuring Level 2 CELL chest armor and a super‑ventilated Nucleon CELL + Flex Hybrid back protector

bionic flex knee protector black red Size:S/M Incorporated stretch inserts for fitEngineered 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