NEW YORK — Denim designers haven’t forgotten that girls about town need the perfect coat to go with their perfect jeans. And for fall, they’re including plenty of great outerwear for that exact purpose. Here, Miss Sixty’s acetate and viscose coat with Sharagano’s polyester and cotton top and Maja’s polyester and spandex jeans (left) and Nautica Jeans’ leather trench and cotton jeans worn with Marithe and Francois Girbaud’s spandex and cotton shirt. For more, see pages 4 and 5.