We're traveling to Europe with 2 kids for the first time. We've done northern Europe and Southeast Asia with DD1 in diapers but I know 2 kids will be a different animal.

Trying to find a good day bag to accommodate DD2's diapering supplies, sunscreen, water bottles, and probably snacks. Bonus if we can fit our midsized camera.

We'll be spending long days in hot weather and I will be wearing DD2 on my bag most of the time so priorities are:
*Backpack-style or similar
*Not overly hot/bulky
*Lightweight
*Probably not fully mesh as we will have camera and wallets inside

Any suggestions? Less than a month left before trip so I need to be decisive soon