If you think of the baggage carousel as a catwalk, the current supermodels are this beautiful Topas aluminium case from Rimowa (£685, at selfridges.com) or anything from Globe-Trotter. But, like Naomi and Kate, they’re expensive, don’t like to travel economy and need to be carefully looked after or else they’ll soon look past their best. (My beloved new Rimowa picked up a nasty ding at Milan earlier this month.) So you may prefer a less precious and more practical runway model such as the design award-winning Tumi Vapor range. Not just a pretty case.