The purchase of a diaper bag is a truly personal decision that expectant mamas spend plenty of time agonizing over. While some fit everything but the kitchen sink, others have only enough space for the essentials. We've seen everything from flower and Winnie-the-Pooh laden designs to designer-logo ones that look just like our every day handbags. No matter what your style, finding one that both mom and dad are willing to carry that serve all of our needs is not easy.

The S. Stein Baby Case may just fit the bill. Made from sturdy canvas with either leather or suede pockets, the bags are designed to be opened and used, rather than rifled through in search of a lil one's pacifier. The snap-out waterproof lining has pockets for bottles, diapers and a change of clothes, while a separate area is specifically designed to hold a cell phone and wallet, making them easily accessible on the go. Designer Sherry Stein, who has worked at both Nike and The Gap, created the bag by piling what she considered to be essential diaper bag contents in one place and then creating a bag that would fit them all. Such a basic concept, yet brilliantly executed. Unfortunately, this ideal bag will set a mama back more than a few bucks at $395, but hopefully other designers will take notice and create similar ones on a more budget-friendly scale.