I use plastic shopping bags, that would otherwise end up in a landfill, melt them together, and use it as "fabric". At a minimum, each product in my ecouture line saves 3 bags from a landfill. Diaper bags save as many as 25 bags each!
In addition, ecouture products are easily wipeable, completely washable (DO NOT IRON!), and mostly waterproof--perfect for a mom on the go.
This is a diaper bag I recently made for some dear friends for their baby shower. Made of outdoor fabric, it is stain resistant.
It came with a matching diaper clutch (in front) and coordinating changing pad, all from the ecouture line. As you can see, the diaper bag has plenty of pockets on the inside and on the front, under the messenger-bag style flap. This one also features optional bottle loops on the side.
There is a rear pocket made especially for the changing pad, or if you don't use it for a diaper bag, it works well for a planner, notebook, keys, or anything else you need to have easily accessible.