Ventilated and breathable
Stay cool and comfortable on the go with 11 vents that let air flow through as you ride.
Checkout as a member and get more time to return products in case you change your mind.
QUEBEC CONSUMERS ONLY: Decathlon Canada Inc. offers a wide selection of repair services, spare parts (in-store and online), and support information, but we do not guarantee their availability under the Consumer Protection Act. The only exceptions are the specific repair services listed below for purchases made on or after October 5, 2025
See moreMain lining: 100.0% Polystyrene |
Shell: 100.0% Polycarbonate |
Buckles: 100.0% Polyacrylate |
Foam: 100.0% Polyurethane |
Webbing: 100.0% Polypropylene |
This contact is responsible for product safety compliance. For help with an order or return, please contact customer service
DECATHLON
DECATHLON SE
4, boulevard de Mons 59665 VILLENEUVE D’ASCQ
Main lining: 100.0% Polystyrene |
Shell: 100.0% Polycarbonate |
Buckles: 100.0% Polyacrylate |
Foam: 100.0% Polyurethane |
Webbing: 100.0% Polypropylene |
This contact is responsible for product safety compliance. For help with an order or return, please contact customer service
DECATHLON
DECATHLON SE
4, boulevard de Mons 59665 VILLENEUVE D’ASCQ
Download user manual PDF for product City Cycling Helmet – 500
Download PDFNot suitable for motor or aerial sports or mountaineering.
Do not expose to temperatures over 50°C (particularly in your car) and store in a dry place away from direct sunlight.
How to adjust your helmet
For the best protection, your helmet should sit close to your head. Adjust the fastening system so it fits snugly, but not too tightly across your forehead. When the straps are correctly adjusted, the helmet should stay in place without sliding forward, backward, or sideways. That’s why we offer several sizes. We recommend trying on a few to find the one that feels just right for you.
BTWIN URBAN BIKE HELMET 500 BEIGE
Your helmet’s lifespan
We recommend replacing your helmet five years after its date of manufacture, which you can find on the label inside the helmet. Because damage isn’t always visible, any helmet involved in a crash or impact should be discarded and replaced. Avoid using solvents or other harsh products, as they can reduce the helmet’s effectiveness.

All B’TWIN helmets are first tested in our lab in Lille to ensure safety before being tried in real-world riding conditions.
EN 1078 CERTIFIED
This helmet complies with EN 1078, the European standard for cycling, skating, scootering and skateboarding helmets. The standard sets strict requirements for construction, field of vision, shock absorption, strap strength and resistance to penetration.
Approved by UTAC
B’TWIN helmets are also approved by UTAC, an independent laboratory accredited by COFRAC (the French Accreditation Committee).
BTWIN CITY BIKE HELMET 100 BLACK