The Troy Lee Designs Speed Youth D3O Knee Sleeves use 4mm thick D3O padding to provide ultra-lightweight knee protection that won\'t slow you down.Silicone grippers hold the sleeves firmly in place while the seamless construction ensures maximum comfort.Troy Lee Designs Speed Youth D3O Knee Sleeves FeaturesYouth SizeD3O® 4mm ultra-lightweight and flexible knee padSilicone grippers prevent slipping360° seamless construction for all-day riding comfortDurable, abrasion-resistant knee panelReflective logos1x Pair