Bought this item for my grandkids. The amount of books they have to carry is insane! With no lockers at school they have to carry all their books (some are very heavy) back and forth. The Chiropractor told us not to use a backpack but a rolling backpack. So I bought two bags last Christmas. I ordered one purple and one black, but received two black rolling backpacks. Overstock.com sent me the pueple bag in a few days. I was very satisfied with their customer service. My grandkids have enjoyed using the rolling backpacks. Unlink other rolling backpacks I bought in the past, these backpacks seem pretty good. The fabric along the bottom does not drag on the ground. I'd say they are better than average.