"Norfolk jacket"
Norfolk jacket
Public DomainNorfolk jacket - Credit: Wikimedia Commons

A Norfolk jacket is a loose, belted, single-breasted jacket with box pleats. It became fashionable after Edward VII (then Prince of Wales) wore one in his sporting circles.

It is still worn sometimes as part of military and police uniforms, as it is designed not to bind when the wearer's elbow is raised to fire a gun.