Â Everything that the adult Troy Lee Designs Speed Knee Sleeve has is incorporated into the youth version. The same D3OÂ® reinforced knee pad provides comfortable protection. The silicone grippers and seamless construction prevent any slippage and still keep the pads comfortable. D3OÂ® 4mm ultra-lightweight and flexible knee pad Silicone grippers prevent slipping 360Â° seamless construction for all day riding comfort Reflective logos Sold in pairs-left/right Â