The point is that a proper leather briefcase not only needs to complement your general appearance but also be comfortable enough for carrying and storing the items inside. Thus, you need to choose the briefcase that would meet your practical needs and not necessarily stylish requirements.
Make sure you have checked the quality of material and its finishing to estimate the durability of the briefcase.
Also, do not neglect the issue that your leather briefcase should show perfect craftsmanship and stitching in the seams, corners, and handles.
It is advisable to choose the briefcase that has a padded section for protecting your laptop.