The exterior is corduroy, for two reasons. One, I love corduroy, and two, it's so durable! You're supposed to use a home decor weight fabric of some sort, but most of those are dry clean only, which just doesn't scream diaper bag, to me. So thus, the washer and dryer friendly corduroy. :)
It has an outside pocket for papers and such,

an inside pocket divided into three sections, meant to carry three sippy cups or bottles, or other snacks,
and an inside pocket for my keys, phone, wallet, and whatever else.
I've been wanting a bigger and nicer diaper bag for a while now, but just couldn't find anything I loved, and everything was so expensive! So, I finally got up the nerve to make one myself. I got inspiration from this tutorial, and this tutorial, but ended up making it how I wanted it. I still need to sew on another piece of velcro, but because I broke my sewing machine needle (first time for everything, right?), it will have to wait. But I am excited, and I love it. And, it cost me less than $20! (and one sewing machine needle...) Pretty great. :)