Taking an few spills is part of learning how to be an better bike rider. Our youth body armor is designed to stay in place comfortably the whole ride, so it' there when you need it. They are constructed using the same impact-absorbing D3O material we use in our adult line of knee and elbow pads. We downsized our body armor for juniors and made it in three sizes to stay comfortably in place, because the best pads are the ones that actually get worn. A layer of tough Cordura nylon helps these pads stand up to rough and tumble riding. Youth Summit Knee Pads