Alpinestars Supertech RK 10 Plasma Knee Braces Adult Off Road Body Armor Indian Scout Bobber 2022 Parts ChromaPop Glass polarized lenses cut Suzuki M50 Boulevard 2005 ChromaPop Glass polarized lenses cut glare and enhance color and contrast SKU: 2820 6761 The replaceable knee cups are constructed with a polyurethane outer shell backed with a Nucleon PLASMA Knee protector for the optimum blend of impact protection this 34 layer carbon fiber frame is engineered for the optimal balance of flexibility and rigidity to deliver the highest levels of rider comfort and support while reducing the risk of sustaining injuries to the medial and lateral collateral ligament