Everyday Laptop Backpack
The specification that separates good from bad is whether the laptop sleeve is suspended off the bottom of the bag. If it is not, the corner of your laptop takes every kerb you step off.

Hostels and overnight trains do not promise air conditioning. Battery over plug-in is the actual point here — it keeps running through a delayed flight or a hot platform with nothing nearby to plug into.
The specification that separates good from bad is whether the laptop sleeve is suspended off the bottom of the bag. If it is not, the corner of your laptop takes every kerb you step off.
Flights home split into before and after owning one. The wrap style beats the classic horseshoe, because the horseshoe holds your head up and the wrap stops it falling sideways, which is the actual failure.
Turns a weekend bag into a week bag, which is the best value in travel gear. They also make unpacking into a hostel drawer a two-minute job instead of an evening.