The suit collar should follow the shirt collar very closely – there should be NO GAP. The overlapping lapel should not raise and curve against the shirt, but lie flat at a straight angle.
Your suit should ALWAYS have perfectly tailored shoulders. If they end slightly before or slightly after your own shoulders the jacket will not look its best.
If you are wearing a two button suit jacket then only the TOP button should be fastened. If you are wearing a three button suit jacket then the MIDDLE button should be the only one fastened. The fastened button should also never fall below the navel.
Your knuckles should be even with the bottom of your suit jacket.
Shirt Sleeve Length
Between a quarter and half an inch of your shirt cuff should be visible after your suit jacket arms.
Suit Jacket Sleeve Length
Jacket sleeves should fall where the base of your thumb meets your wrist, not below, and not above.
You should have around one inch of break falling over your shoes. Too much break looks sloppy and ill fitting, whereas too little break will show your socks or ankles.
Navy Suits will great with black, brown, red/burgundy shoes.
Grey/Black Suits will also look great with black, brown, red/burgundy shoes.
Brown Suits will benefit from brown or red/burgundy shoes.