Smart dark blue or black suit..not too trendy, matching belt and shoes (polish the buckle and the shoes) New white shirt with plain collar, a plain tie that matches the suit colouring in some way, maybe the lining colour. Tie a half windsor knot in the tie and have the end of it it 2-3" below your waistband No cufflinks or tie pins. No rings other than wedding ring if you have one (on your finger not your ear or nose. Nothing in the jacket pockets
This is getting a bit too anal! Look, it's not a fashion show, nor are you being assessed as the company's next advertising hoarding. Few pilots are great dressers - one of the main reasons we have uniforms. If you want to spend loads of time on your appearance, great, but perhaps you'd be better off joining one of the ceremonial formations of HM services!
A clean suit, light shirt, a tie, clean shoes. Don't forget to wear socks. Shave and comb your hair. Don't get too bothered whether your tie matches your suit lining (
Jeez!), and if you've got favourite cufflinks or feel a tiepin is really you, then wear them. No-one's going to mark you down for it.
All you need is to look moderately smart and formal, while remaining relaxed and comfortable. Don't go overboard, but don't look scruffy. Leave the clothes fetishists to get all hot and bothered about whether things match or not; your interviewer certainly won't!
Scroggs