Tonal dressing done right: charcoal gray and space black sit close enough to read as one thought, different enough to hold visual interest. Lightweight fabric that holds its shape through a full day. Three time zones in, still no wrinkles. The guy next to you in chinos can't say the same. One less thing to think about at the airport. That's worth more than TSA Pre.
Finish with matte black leather sneakers and a black nylon duffel.