This trench ($199) is available in sizes from XS to 5XL; as its name suggests, the coat has a straightforward look that is unlikely to go out of style. A plaid collar is a distinguishing feature ...

I just had to learn more about her marvelous coat. Ms. Prugnaud, 56, had recently bought it at an Isaac Mizrahi archive sale, she said, adding that the brand’s eponymous designer was a friend.