Me and my big mouth.
I couldn't find any patterns that came even close to this type of bag. Finally, after spending too much time searching pattern sites and catalogs, I figured that I was going to have to wing it.
The Amazon product site was kind enough to list the dimensions of the bag, so that was my starting point. From there, I eyeballed some pattern piece sizes (drafted on Pellon Tru Grid -- wonderful stuff) and threw together a muslin. Diana gave her approval on Friday evening, and said she hoped it would be finished in time for our trip to New York City... tomorrow.
Somehow, it got done. And the daughter has pronounced it "perfect!"
Here she is, testing it out:
There are four outside pockets; two on the front panel:
And one on each of the two side panels:
There's also a zippered pocket on the inside:
This upcoming New York trip will be the "trial by fire" for this bag; I'll let you know how it works out!
Now if you'll excuse me, I need to go pack my own suitcase for the trip!