does anyone have the Caterpillar or Brown Bear Backpacks from PBK for LO? If so is it roomy, what do you use it for? 
If not do you recommend a specific style backpack style bag? 
Im looking for a smaller backpack to throw a few things in so i can get rid of diaper bag and not totally trash my purse with sippy's and such......
TIA 
Re: PBK Toddler Backpacks