I bought this rolling backpack for days when I have to carry a lot of books to and from work (I'm a librarian!). After searching around I settled on this as one of the best priced and a decent size.

The backpack I got is Candy Buttons which is grey with yellow dots--a combination I like because it's bright but also less likely to show dirt. The bag has a front pocket with pen holders and paper/card slots. Each side also has a mesh pocket. The back has special compartments to stow away the backpack straps and there's also a thick padded carry strap on top of the bag as well. Each compartment opens with double zippers for each closing. The wheels are large and sturdy and the pull out handle is one stick with a stick handle which I prefer to the two bar model.

The bag is a decent size and fully lined but there are no padded compartments which might be an issue if you are hoping to carry any portable technology. The interior of the largest compartment is big but the bar for the rolling handle does take up some of the space.