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It’s not the Photo, MET’s Sine Thesis Helmets Glow with the Power of the Sun

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MET Sine Thesis Nightlights helmet, aglow, top view

If you’re a two-wheeled commuter, recent cycling technology has been the light of your life. Among a slew of cool new lighting concepts, we’ve just found yet another interesting innovation in MET’s Sine Thesis Nightlights helmet.

This clever helmet collects and emits light from luminescent material incorporated into the shell, retention system and straps. In addition to its glow-in-the-dark parts, reflective logos and stickers help increase visibility and it even holds a detachable LED light in the rear adjuster. The Sine Thesis also boasts a 360° retention system, a highly ventilated shell, and its overall weight remains quite impressive. Enlighten yourself further by clicking past the break…

MET Sine Thesis Nightlights helmet, daytime

MET claims this is the first cycling helmet with luminescent material injected into the exoskeleton, cam dividers and retention adjuster. The material absorbs sunlight during the daytime and emits light for up to two hours when it gets dark. The straps, MET logos and select stickers are also reflective, aiding nighttime visibility from all sides.

MET Sine Thesis Nightlights helmet, rear LED light

The Sine Thesis Nightlights also comes with a removable LED light that fits snugly into the retention system’s adjuster dial with no tools required. The light features six LED’s with flashing/constant settings plus an automatic sensor-controlled ‘night safe’ mode. The battery provides up to 2.5 hours of life on steady mode and up to 4 hours of blinking, and the compact unit weighs just 13g. It is also water resistant, and charges via USB.

The helmet features an in-mold shell with MET’s highly ventilated Ice Lite construction to allow excellent airflow. Only 20% of the helmet is in contact with your head, which according to the company’s claim (not ours!) makes the Sine Thesis the most ventilated helmet on the market.

Full Gel O2 padding helps keep your noggin cool and comfortable. The padding conforms to the shape of your head for a snug fit, yet maintains its original thickness over time and lasts longer than foam padding. The 02 pads don’t absorb perspiration, but rather direct it to the sides of your face. It’s also a very hygienic material with anti-bacterial and hypo-allergenic properties.

MET Sine Thesis Nightlights helmet, riding shot

The Safe-T Advanced retention system is MET’s top of the line design, which is lightweight and comfortable with a large surface area and ventilation channels cut into the cradle itself to aid rearward venting. The cradle has four vertical adjustment positions, and a 360° retention ring to ensure even pressure all around.

MET Sine Thesis Nightlights helmet, yellow MET Sine Thesis Nightlights helmet, white

The Sine Thesis Nightlights helmet is available in medium or large sizes with three color options- Yellow, Black or White. A medium lid weighs 275g and the large comes in at 330g. A neoprene carry bag is also included. MET products are distributed in the USA through Todson- Visit their website to find a local retailer for pricing info.


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8 years ago

At least there’s nothing that needs to be charged.
However, how does this luminescent stuff compare to the reflective materials/paint we usually see ? It doesn’t need a light to shine at it directly, but I’m not sure it’s that important.
I would really like to see a picture taken from a distance, with this helmet and one that would have reflective strips with roughly the same arrangement, to compare.

Joe C.
Joe C.
8 years ago

I don’t see how this will work for commuters. What are you going to do if you can’t keep it in a well lit area? Like, if you keep it in the garage at night and you leave for work when it’s still dark. How long does it need to be lit up to charge the luminescence? I don’t think it’s as practical as they think. I think reflective tape/paint would work better.

8 years ago

I like it. I think the LED light in the back is a good idea and safety is an important consideration for me when choosing a helmet. I wish there were more bike shops that have these helmets so I could go try one on. I’ve never seen a local bike shop in my city that even carries Met helmets,

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