Bell Faction Paul Frank, £35,

This is a scaled-down version of the skate-styled adult Faction bike helmet — what the cool kids wear. Bell have teamed up with American cartoonist and fashion designer Frank for a range of lids featuring his unique artwork — this one features Julius the Monkey, one of his best-known characters. The helmet has a tough plastic shell, to protect it from inevitable scuffs, bonded to a standard dual-density EPS foam inner. Despite its look it is lightweight and has 12 vents to keep heads cool. Plenty of padding and an adjustable strap keep it in place.

Sizes XS (48-53cm) and S (51-56cm).

PROS: cool looking, tough shell
CONS: pricey