Cue the boyfriend jean for any long-haul flight. Getting that extra room that guys are accustomed to means you can curl up in your business class flat bed for hours and feel like you’re in PJs … and there’s nothing better than these for strolling city streets (and eating a few extra croissants along the way).

J Brand 9022 Georgina mid-rise slim boyfriend jeans, $270, net-a-porter.com