How about the messenger bag?

The bag features
* Includes cushioned changing pad and shoulder pad with cell phone/iPod pocket.
* Ease neck and shoulder pain with the patented ergonomic strap which distributes the weight of the bag across your back.
* Slide the shoulder pad to the top of the strap for a sleek messenger bag look and feel.
*Velcro the center divider in place when you need orginization or move it to the side if you want to carry a laptop.
* Keep your little one clean with the cushioned changing pad and wipes case that come with each bag.
* Keep the bag easy to reach and out of your way by hanging it from the stroller handles using stroller straps.
* One-hand access to baby bottles and sippy cups that fit in the fully-lined bottle pockets.
* Sturdy construction and foam base will keep bag upright when placed on flat surface.
* Carry a 14″ laptop, textbooks, workout gear or yoga mat and clothes.
* Roll up your yoga mat and slide it through the stroller straps when not attached to stroller.