Does it have a laptop compartments and, if so, what size laptop is maximum?
This bag does not have a laptop compartment.
No, it doesn't have a *specifically designed*padded laptop pocket BUT the large outer pocket (on side opposite rolling handle)is 18x13" and so quite easily held my laptop, cord and my ebook reader. The pocket's exterior is lightly padded and the interior presses against you're clothes, etc. I wouldn't trust it for check-in laptop (heck, I'd never check my laptop!), but it works well for carry-on laptop storage. Add a sleeve if you like more cushioning.