Alpinestars Bio Flex Knee Guard Plytix meaning these shorts won't shift

meaning these shorts won't shift around while pedaling

3 shell sizes

Reinforced 600d overlays on instep and lower hem

the Proteus will have you covered

An upgraded fabric with added texture and even more stretch

Alpinestars Bio Flex Knee Guard Plytix meaning these shorts won't shiftFEATURES Extremely lightweight, durable and flexible protector constructed from a breathable stretch mesh for a comfortable, close fit Elasticated top strap for a customizable fit Highly convenient and time saving slip design with elasticated hems and silicon printing to prevent slippage and to help keep the protector securely positioned Nucleon Flex Technology protectors are highly perforated and secured on the outside of the sleeve for excellent