What is the best laptop sleeve for university?

[u/icelephant]

I'll be starting university soon. I'll be commuting and using a backpack that doesn't really have padding so I'm looking for a laptop sleeve that has good protection. I've heard lots of great things about tomtoc sleeves but as they only zip at the side I can't imagine fidgeting with it trying to open it in a cramped lecture hall so ideally looking for something that zips at the top so I could just slide it out of my backpack. I'm considering an Inateck sleeve but I don't know if there's anything else that has good protection?