These are Sasaki's light pink knee supports. The size is indicated as "J," and my daughter used them for rhythmic gymnastics when she was in lower to middle elementary school. They are not like the sturdy Chacott rhythmic gymnastics supports, but rather have a soft, skin-friendly feel with cotton padding. As you can see in the image, there is a snag on the upper left of the logo. It hasn't frayed, but the thread is loose. There is some pilling and fuzzing, and they show considerable wear, but there are no noticeable stains, and they can still be used. Since injuries are common in winter, how about using them for injury prevention?