Technology

Of course Hedkayse One conforms to safety standards in Europe. But Hedkayse One is no fragile one-hit wonder. Because of Enkayse, Hedkayse One is able to pass safety tests after multiple impacts. That’s pretty impressive considering the size of a single test impact alone is fairly fierce.

Conventional helmets are made from polystyrene. In a large impact, polystyrene deforms to provide what’s known as sacrificial protection. This is why you have to be careful not to drop your polystyrene helmet in everyday use, and it’s why manufacturers recommend that you replace your helmet after a knock. Enkayse is designed to work differently.

It manages the energy of impacts, so it can retain its integrity after more than one impact, large or small. Because Enkayse dissipates energy rather than deforming on impact, it also cushions small bumps.

Polystyrene can’t do this since forces which are too weak to deform it are transmitted through. Enkayse provides comfort in protecting from small bumps. This may also have long-term benefits as researchers believe the cumulative effect of small knocks contributes to brain disease over time.

Enkayse vs EPS helmet technology

Because Enkayse shrugs off little bumps, it means that Hedkayse One is durable against the knocks and scrapes that come with everyday use. You can be sure that Headkayse One will stand up to the daily grind and get comfier to wear the more you wear it.




The vision of a one-size-fits-all, folding helmet wouldn't be possible without our flexible exoskeleton, exhaustively developed and refined.

TAF (Tough and Flexible) is a specifically engineered rip-proof military grade Ballistic Nylon that forms the outer shell of the Hedkayse One. Lightweight. Strong. Easily washable.

Its strength holds the helmet together, whilst providing the flexibility that allows the helmet to fold, and to adapt to all head types and sizes ranging from 49-58.5cm. Its low friction surface is designed to help minimise additional tugging forces from the road surface in the event of a crash.




Because Hedkayse One is so different from any other helmet, we knew that we’d need to create a fit system unlike any other.

We designed the X-Strap retention system to be fully customisable, giving Hedkayse One the ability to fit multiple head sizes comfortably and securely.

The X-Strap webbing and rear 'hook-and-loop' strap allow the helmet to fit heads from 49 - 58.5cm; the side buckles adjust to keep your ears from being squashed and our patented Quick-release Adjustable Ratchet Chin-strap (QARC) allows quick and easy removal no matter what you’ve got on your hands.