These are a replacement for my son's UA youth size shin guards. He got his first set when he was 10. He is now 13. The first pair held up great with heavy, heavy usage. He loves the way these fit compared to other brands. They offer plenty of protection without being too bulky and allow for great mobility. Love the gel knee cap pads and the fact that the padding is adjustable. The hockey style facemask and chest protector have held up great as well. He is still using those.