Both my boys (11 and 8) play soccer so I'm not claiming that they sit on the sofa and do nothing and suddenly get holes in their pants! No...I'll be honest and say they are active but man....the holes in the knees on these things appear within weeks of buying!!! I'm used to seeing holes in jeans and uniform pants and such so I get it but it seems like they should put some sort of thicker liner around the knee area since kids who are wearing these are generally being ACTIVE while wearing. They are expensive and I've bought pair after pair for both boys (because they beg for them) but honestly I wish they didn't think they were so cool b/c they simply don't last!!!