While it’s clear that structured, ladylike bags are the key silhouette for the season, another similarly streamlined, but more masculine doctor-inspired style is also having a moment. Duffel bags (which are named after a Belgian town where the fabric for the original holdalls was sourced) have replaced the satchel as the of-the-moment work carryall. Not to be confused with the common gym bag, these styles are sleek — no bulky exterior pockets getting in the way — with top handle and cross-body strap options. That allows you to carry your annoying daily haul any way you want, so you’ll look sophisticated while hailing a cab. In various types of leathers and in every shade and price range imaginable, you can blame Kate Moss for the omnipresence of this style.