In the midst of a struggle of epic proportions to save the galaxy from certain destruction at the hands of the seemingly-unbeatable Reapers, fashion is an ever-present concern that no hero or villain, however large or small, can ignore. No one knows that better than Shepard's companions, Garrus Vakarian and Kaidan Alenko.
Garrus Vakarian may be horribly disfigured from being hit in the face with a rocket, yet his flanges maintain outstanding form.

Kaidan Alenko, on the other hand, demonstrates clear mastery with the (as of 2183) Gilette 52-nanoblade Razor.

But who demonstrates the mighty powers of sideburnitude better?