Ju-Ju-Be Mighty Be Diaper Bag - Evening Vines MightyBe to the rescue! This might be the best beach bag ever. This might be the best school bag ever. This might be the best shopping bag ever. This might be all of those put together and more. The MightyBe manages to be the best without being a beast and it looks super sporty too. It has just enough pockets to keep you ultra organized and a snap top closure to make sure your stuff doesn't go anywhere with out you.