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World's First Smart Folding Helmet

Folds flat instantly. Thinks for itself. Could save your life.

By Jeff Woolf OBE, inventor of the flat-folding helmet.

Global shipping USA, UK & EU Coming Soon
3.25

3.25"

Folds to just 3.25 inches wide — thinner than most water bottles

<0.5s

<0.5s

Simple open and shut mechanism folds flat in well under half a second

GLOBAL SHIPPING

GLOBAL SHIPPING

Worldwide courier delivery

ENGINEERED TO FULLY MEET CE EN 1078 AND CPSC SAFETY STANDARDS. WE WON'T SELL A SINGLE HELMET BEFORE WE HAVE COMPLETE CERTIFICATION

Built for Safety, Engineered for Convenience

Folds to a third of its size, small enough to slip into a bag or tote.

helmet + +

Folds in under half a second

One quick motion and it's packed away, no fiddling, no clips to click and no straps to wrestle. Ready to wear again just as fast.

Aerodynamic Ventilation

Six strategic vents channel airflow to keep you cool without compromising protection zones.

Smartly Weighted

Every gram earns its place, with the folding frame, sensors and smart safety tech all built in.

EARLY ACCESS

The Woolf App

YOUR HELMET.YOUR RULES.

The Woolf app puts you in complete control. Adjust and personalise almost every aspect of your helmet — from how your indicators activate, to how long your battery lasts. It's your ride. Set it up your way.

Remote control or sensor — your choice. Switch between the optional handlebar remote and head-tilt sensor control for your turn signals. When using sensor mode, fine-tune the activation angle (10°–45°), trigger time (0.5–2 seconds) and signal duration (5–12 seconds) to suit your style.
Full lighting control. Set front and rear light colours independently — white or amber. Choose your mode: Constant On, Pulsing or Flashing, with adjustable frequency and intensity from 0–100%. Total control over how you're seen.
ECO mode for longer rides. Tap the ECO toggle in the app to switch to low consumption mode — instantly adding up to 2 extra hours to your battery life for a total of up to 6 hours of smart lighting.
Live battery monitoring. Your app dashboard shows remaining power percentage and estimated hours of battery life at a glance, so you're never caught short mid-ride.
Crash detection & emergency contacts. Set and manage your emergency contacts directly in the app. If an impact is detected, a 30-second countdown begins — if unacknowledged, your live GPS location is sent automatically to your contact and emergency services.
Brake sensor sensitivity. Adjust how responsive the automatic brake light is to deceleration — dial it in precisely for your riding environment and conditions.
Available for iOS & Android

ACTIVE VS. PASSIVE

Why Woolf is the smarter choice for urban riders

Standard Helmet (Passive)

  • Protects on impact, then does nothing else.
  • No way to signal a turn without taking a hand off the bars.
  • Only as visible as the reflectors you stick on.
  • If you come off, no one knows.
  • Bulky the moment you step off the bike.

Woolf Helmet (Active)

  • ERT that manages rotational and linear force, tuned for the low-speed impacts behind most concussions.
  • Hands-free turn signals trigger with a tilt of your head.
  • A brake light that fires automatically the instant you slow.
  • Crash detection that shares your location with your emergency contacts.
  • Folds to 35% of its size, so it comes anywhere with you.

READY TO RIDE SMARTER?

Join the Waitlist. Be the first to know when our helmets are available for the next shipment. 

Launch Q4 2026
Global shipping USA, UK & EU Coming Soon