OiOi designers really did their research. These people covered many varieties and looks of diaper bags. There are the more traditional brown bags, a slightly modern black and white bag, and lastly, a very modern cool blue and hot pink style for younger moms. Whatever bag you like, be it a Messenger, Hobo or Backpack, you can always choose to have a classic, semi-modern or new look. It is no wonder why this stuff is so popular in Australia and amongst celebrities. Ranging from $110-$160 dollars, these bags definitely are worth the buy, especially since they can function as a purse or a diaper bag. All in all, OiOi diaper bags rank high in my book for their versatility and design.