An Adelaide is an Oxford with its lacing panels stitched in a U or D shape, framing the throat instead of running straight into the vamp.
Small change, large effect: the eye follows the curve, the facing looks narrower, and the whole shoe reads longer and more considered. Most men do not know the name and every one of them notices the shoe.
Formal enough for a wedding, distinct enough that it never disappears into a row of black cap toes.
Ours is built on the 358 last — a soft-square chisel toe — and Goodyear welted, so the frame around the laces keeps its shape.