Aerospace engineers need travel gear that works as precisely as their projects....

https://wiki-coast.win/index.php/Why_Do_Engineers_Care_About_Symmetry_in_a_Briefcase%3F

Aerospace engineers need travel gear that works as precisely as their projects. This article breaks down luxury briefcases and travel cases built to fit a 15.6-inch laptop and endure over 20,000 hinge cycles