This bag I made for one of my younger sisters right before we went to a conference. This is the smallest size that I will be selling and measures 10" l, 3 1/2" w, 12" d. This is a perfect size for a notebook, pencils, book, and maybe even a water bottle. Or it could be used as a craft bag to fit your current project.
With this bag I experimented a little with personalizing. The L was a perfect letter to start with since it has straight sides. I also used a thinner strap for this one. The straps on my larger bags are 1 1/2'' while the strap for this size is only 1''. However, either strap could be put on either bag.
This bag is also reversible and the pockets are contrasting an both sides.