I'm flying a lot with work at the moment. I'm looking for a stylish bag that will take 2 laptops and is secure (zipped) enough to shove under the seat in front of me. I don't use it for packing. That goes separately. Currently I have a ruck sack which is pretty enough when empty but doesn't close properly with the weight of 2 laptops in it. Don't mind throwing some money at the problem 
. Doesn't have to be another rucksack.