Should you do up the bottom button on a 3 button suit?

No. The tradition of leaving the bottom button of a coat undone started as a fashion choice. Coats are designed to flare away at the bottom, since the hips are (generally) broader than the waist,...

the top 2, never the last button

All 4

Yes.

. . Answer. . The tradition of leaving the bottom button of a coat undone started as a fashion choice. Coats are designed to flare away at the bottom, since the hips are (generally) broader than the...