I bought this bag to carry in lieu of a purse and diaper bag. I LO is 2 YO and i needed my hands free to watch him without worrying about a bag falling down my arm. This was lightweight and stayed put and the perfect medium size where it wasn't bulky, but had enough room to stow his sippy cup and an extra diaper. I particularly like the front pocket, where I could keep my debit card and cash in easy reach, and I like the sneaky pocket that stays against your back for if I'm ever carrying anything I need to keep safe!