On chillier outings, sometimes a helmet isn't quite enough to keep your noggin warm. And we all know how frostbitten ears can ruin an otherwise fun ride. That's where cycling headbands come into their own - discrete and thin enough to wear under your lid, they can also be colourful enough to accessorise the rest of your look. And when the sun warms up, cycling earwarmers are tiny enough tuck away in your pocket.