With an innovative solution, the Fend One foldable bicycle helmet redefines the commuting experience for the city rider. Its precise and compact design allows it to fold to one-third of its size and to be quickly stowed in any rucksack or carrying bag when not in use. A seamless locking mechanism prevents the helmet from folding while being worn. The protective headgear includes streamlined vents for maximum breathability and is very user-friendly.