These are organic cotton brand clothes (*^^*) Because they are organic cotton, I think even children with sensitive skin can wear them♪ I think these clothes are not often sold ☆ The knees are reinforced, so they are perfect for active children! I wore them often because they were my favorite, so there is a feeling of wear such as fading and fuzzing. Please refrain from purchasing if you are concerned about this. These are used children's clothes. There may be oversights such as stains (>. <) For those who understand ☆