What does a hidden button front mean on a coat?

The buttons sit behind a fabric placket, so the front shows a single clean line instead of a row of buttons. You still fasten it the same way, just under the overlap.

Is a three-quarter length coat warm enough for winter?

It covers the torso and upper thigh, so it handles cold days well when layered. In deep winter or wind, the exposed lower leg is the weak point compared with a full-length overcoat.

Can I wear it over a suit jacket?

Yes. The straight, unstructured cut is designed to layer over tailoring as well as a sweater. Check that the shoulders and chest leave room for a jacket underneath.

How does it compare with a belted trench or overcoat?

It is cleaner and more minimal, with no belt or visible buttons. A belted coat gives more waist shaping and a different look; this one stays straight and formal.

What should I check about the fit before buying?

Confirm the shoulder width and chest measurement leave room for layering, and that the sleeve length reaches your wrist over a jacket. A long coat should sit around mid-thigh to knee.