I made mine using five fat quarters of material and I used the selvedge (side note: that is the British way of spelling selvedge) from the material for the draw string.
It has boxed corners and two large pockets on the outside. There are no pockets on the inside.
It is also fully reversible which would put the pockets on the inside and measures 18 inches high and 15 inches wide. It's fully washable also.It is ideal for using as a tote bag type of bag, or for carrying or storing a project in while you are working on it.
I was asked to make one for a friend (albeit smaller) so wanted to try and make one for myself before making hers.
I honestly have little use for this one, so if anyone would like it, I am willing to sell it to whomever for $40 CDN + shipping. As I said I used five fat quarters of good 100% cotton material. I will change out the drawstring to a better one. This one is not 100% perfect but is very usable.