The last time I counted, I had about ten pairs of loafers in my closet. I like that the shoes can be snappier and less dainty than ballet flats and a little more serious than mary janes.

Loafers were originally an antidote to overly stuffy dress shoes in the Fifties. Now they’re back, seen on everyone from Harry Styles to that stylish grandpa down the street. In other words ...