Descente Elbow and Knee Supports Purchased when my daughter was in her first year of junior high school. She quit the club, so she only used them for about six months. Both knee supports have some slight sweat stains on the white rubber part on the back, but they are relatively clean☆ I don't have the purchase record from school, and there's no size indication, so I don't know the size (T . T) How about them for a spare?