I have a very hard time finding bottoms to fit DD(11). For jeans, the only pair I've ever found that fit are the Old Navy Super skinny jeggings in a 12-SLIM. She prefers to wear leggings and long shirts to school because they aren't allowed to wear jeans in PE and there really isn't a locker room with sufficient space for all the girls to change, so she ends up being tardy when she wears jeans and has to change prior to class (and the teacher is a sticker, telling them they just should not wear jeans if they want to be on time). Her leggings are all far too short. The issue is she needs a size 7 for the waist/rear end but needs a 12 length wise. For spring and fall we just buy size 7 regular leggings and she wears as capris but for cooler weather that doesn't work. She has a few pairs of leggings from Gap and Gymbo in size 10 - they are now getting too short and they fit her like baggy sweats anyway. Can anyone suggest leggings or yoga pants that run really narrow?