What makes Swivvle helmets different?

Swivvle helmets integrate retroreflective technology directly into the helmet material itself. Unlike reflective stickers or coatings, the reflective properties are embedded throughout the helmet shell, creating 360-degree visibility when light hits the surface at night.

Do Swivvle helmets glow in the dark?

No. Swivvle helmets are not glow-in-the-dark. Instead they use retroreflective materials that reflect light back to its source, such as car headlights. This makes the helmet appear bright and highly visible to approaching vehicles in low-light conditions.

How long does the reflective effect last?

The reflective technology is integrated into the helmet material itself, so it does not fade over time. As long as the helmet surface is clean and undamaged, it will continue to reflect light whenever illuminated by a light source.

What safety standards do Swivvle helmets meet?

Swivvle helmets are tested to meet recognised international safety standards. Depending on the model, certifications may include CE EN1078, CPSC, and NTA8776. Some models also incorporate MIPS, a safety system designed to reduce rotational forces during angled impacts.

What is MIPS and how does it improve helmet safety?

MIPS, or Multi-directional Impact Protection System, is a low-friction layer built into certain helmets. It allows the helmet to move slightly relative to the head during angled impacts, helping reduce rotational forces that could otherwise be transmitted to the brain.

What is retroreflection?

Retroreflection is the process of reflecting light back toward its source. When headlights shine on a retroreflective surface, the light is returned directly to the driver, making the object appear much brighter and easier to see in the dark.

What is the difference between fluorescent and reflective materials?

Fluorescent materials appear extremely bright during daylight because they convert UV light into visible light. Reflective materials work differently: they bounce light back to its source, making them highly visible at night when illuminated by headlights or other light sources.

Are Swivvle helmets waterproof?

Yes. The outer shell is made from durable polycarbonate, which protects the helmet from rain and everyday weather conditions.

How should I maintain my helmet?

Clean the outer shell with a damp cloth and mild soap. Avoid harsh cleaning products. Interior padding can be removed and hand washed, then allowed to dry completely before reinstalling.

When should a helmet be replaced?

Helmets should generally be replaced after any significant impact, even if no visible damage is present. For normal use, replacing a helmet every five years is recommended due to material ageing.

Swivvle® Sirius Retroreflective Helmet Mist Grey

Name: Swivvle® Sirius Helmet Ivory White Reflective Cycling Helmet with MIPS Urban Commuter Safety — Impact
Brand: Impact
Availability: InStock

£139.00

Size:

Small 51-54cm

Medium 55-58cm

Large 59-61cm

FIND YOUR SIZE >

Always-On 360° Visibility. Advanced Protective Design.

For riders who expect uncompromising safety with effortless simplicity, the Sirius combines always-on 360° visibility, MIPS impact protection, and refined urban style.

Full retroreflective polycarbonate shell with reflective straps for Always-On 360° visibility without batteries
Integrated MIPS impact protection system
Lightweight in-mold construction (~280–300g)
Fidlock magnetic buckle for easy fastening
8 ventilation channels for airflow
CE EN1078, CPSC and NTA8776 certified
Crash replacement program

Ideal cycling helmet for commuting, e-bike riding, and everyday cycling.

FIND YOUR SIZE >

Always-On 360° Visibility. Advanced Protective Design.

For riders who expect uncompromising safety with effortless simplicity, the Sirius combines always-on 360° visibility, MIPS impact protection, and refined urban style.

Full retroreflective polycarbonate shell with reflective straps for Always-On 360° visibility without batteries
Integrated MIPS impact protection system
Lightweight in-mold construction (~280–300g)
Fidlock magnetic buckle for easy fastening
8 ventilation channels for airflow
CE EN1078, CPSC and NTA8776 certified
Crash replacement program

Ideal cycling helmet for commuting, e-bike riding, and everyday cycling.

Why Riders Choose Swivvle®

Always-on visibility, built in
The retroreflective shell returns light toward its source, improving recognition by drivers and other road users without relying on electronic lights. Designed to complement traditional bike lights — not replace them — for layered visibility on the road.
No charging. No fuss.
Unlike clip-on lights or smart helmets, visibility is always on— nothing to activate or maintain. Combined with MIPS impact protection, balanced ventilation, and a secure fit system for everyday riding confidence.
Engineered materials. Refined design. Lower impact.
Clean aesthetics, durable materials, and Always-On visibility technology eliminate the need for batteries or electronic components — reducing waste while supporting long-term everyday use.
Swivvle® also supports reforestation initiatives with every helmet sold
If your helmet is damaged in a crash, Swivvle® offers a crash replacement program to help you get back on the road. Depending on timing and eligibility, this may include a free replacement or discounted new helmet. Registration and proof of purchase required — see full details HERE.