Standard interviewing advice is to dress one step above the position you're interviewing for, but in aviation this maxim doesn't really apply. Your goal is to "fit the mold" of whatever sort of pilot your target company is looking for. For flight instructing or other entry-level jobs, a polo shirt and khakis are usually sufficient. For a Part 135 gig, a dress shirt, tie and slacks would be appropriate. Any interview beyond this — for a corporate, fractional or airline position — requires the standard interview suit. For men, this is a dark blue or black two-piece business suit of traditional cut. The jacket should be single-breasted with two or three buttons. The dress shirt should be fairly muted, and the tie a solid color or subtle pattern. For women, the interview suit is not quite so rigidly prescribed and a variety of fashions are seen. A skirt of modest length is fine, but many women still opt for trousers.