Really need an awesome diaper bag backpack

I have looked at dozens online and haven’t been able to choose! Price isn’t an issue and I really want one with the following:

-enough space to fit newborn and his toddler brother’s stuff

-side pocket for my water bottle

-waterproof or easy to clean

-sturdy and stiff and doesn’t have that wrinkled or deflated look

-usb connection for phone charger

-insulated pocked for bottle

-side pocket for wipes

-stylish enough to be both a diaper bag and my

Purse in one

-preferably grey or neutral colors

Thank you so much for any thoughts!