How do I find the right bag size?

Of course, that depends on how big your laptop is! A 15 inch laptop will not fit in a 14 inch bag!

So:
First measure the laptop – length x width (the thickness is irrelevant)

Now compare with the size of our bags.

P.S.: Over the last few years, current laptops have been given thinner and thinner screen frames. The external dimensions of the device have therefore been significantly reduced for the same monitor size. Our Slim Fit bags are optimized for these laptops. This makes a big difference to the “size effect”. The bag looks much slimmer and more compact as a result.