2. A secure but comfortable fit.  You can get all sorts of fitness-oriented designs that wrap tightly around your head, over and around your ears, and then deep into your cranium. However in my experience, the best types of running headphones are actually either true wireless or lightweight Bluetooth in-ears with tips that go into the ear as usual, but with additional, curved, tapered ‘hooks’ that sit under the antihelix of your ear. For those of you who aren’t ear doctors, that is the crater of cartilage that sits above your earhole. Of that type, pioneered (I think) by Monster and Bose, the Optoma NuForce BE Sport4 are the best but again, Powerbeats Pro is the gold standard here, with a different approach that involves using spectacles-style, over-ear hooks.

3. Decent sound quality. Most people want to be able to hear/feel their tunes as they workout and be motivated by them, whilst blocking out the gym/the world. They don’t necessarily want to be picking out hitherto undetected nuances in the string quartets of Brahms or the early works of Fleetwood Mac. So while three or four of the running headphones here sound really good, most just sound ‘good enough’, usually with a sound that favours bottom-end and mid-range tones.

4. Situational awareness. This is all-important for some people, who feel that effectively deafening themselves leaves them in danger of traffic or muggers when road running. It’s of no importance to me, as I prefer to shut out the world entirely when working out, but nonetheless I’ve included three great pairs of headphones specifically designed to let ambient sound through.