Troy Lee Designs Method Knee Guard (X-Large/XX-Large, Black) Troy Lee Designs is the place where "The World's Fastest Racers" go when only the best will do. Two-part system, knee sleeve only or add plastic shields for increased protection. CE-1621-1 certified impact liner padding to absorb big hits. Durable polyethylene plastic impact shields for extra protection. Shields utilize internal honeycomb matrix for strength and weight reduction.