How many and what type of clothes should a 12/13 year old own?

When looking for your clothes go for quality not quantity! Ya expensive brads are very nice, but sometimes you could find higher quality stuff for a lower price. With 1000$ I would look for some jeans that fit well and flatter your legs and , boot cuts are probably best. Also a couple of nice plain shirts that go with anything and some that you just love. I would definitely look for some good running clothes too. Maybe try runners den or other running stores for those though.