Alpinestars Bionic Plasma Knee Protector  Youth 
Highly comfortable: The Nucleon Plasma Protectors in this jacket are constructed from a USDA BIOBASED certified viscoelastic material, which is moulded into a structure that is pliable in all directions while maintaining the ability to dissipate impact energy.
The main chassis is constructed from a soft tactile highly breathable stretch mesh fabric for optimized cooling performance.
Extra coverage: Additional upper arm padding for enhanced roost coverage.
Adjustable: Removable strap system with height adjustability via the lower central back hook and loop patch for optimum positioning of the back protector.
Premium Protection: Features CE Level 1 Certified Nucleon Plasma Shoulder, Elbow, Back and Chest Protectors.
Construction
Abrasion resistant outer textile over protector pockets for superior durability.
Offset side zipper for enhanced ergonomic protection.
Rotating strap buckles ensure the strap caters to a wide variety of body shapes and sizes.
Adjustable side belts to secure the chest protector in position while eliminating any unwanted movement.
YKK locking zipper to prevent any unwanted zipper movement while riding.