Inspired by the early helmets made from padded leather panels, the Carrera Foldable helmet isn’t exactly foldable as such, more that it’s a squishable, like an accordion, and loses 5cm of its width when it’s compressed. It’s great for anyone who’s got a slightly unconventional head shape, as the way the structures fit mean they’re not rigidly set to the conventional shape. A little odd to get used to at first, it’s very well ventilated and meets all the necessary safety criteria, of course.

Price: £59.99, available from Carrera.

Best Price: £42.99, available from Koo Bikes.