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METManta Helmet

Item # MTE0009

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Item # MTE0009

Manta Helmet

We'll go ahead and start off at the top, the Manta Helmet from MET is its most aerodynamic version outside of its Tri and TT models. For that reason alone, you can expect this lid to be very popular atop the heads of the fastest sprinters, seeing as it offers around a 10-watt savings at 50km/h. But perhaps what's most important with the design of the Manta, was MET didn't sacrifice its ability to cool or neglect a lightweight build.

MET constructs the Manta with an NACA crown duct at the top along with optimally positioned vents throughout ensuring the Manta facilitates airflow, keeping you cool on the warmest summer rides. This means that besides reducing drag, the low-profile Manta is great as an everyday helmet as it prevents you from overheating. MET claims the Manta weighs in at 200g, an impressive number for any helmet, especially so given its aero tendencies.

Perhaps one of the most scrutinized detail in a helmet is fit and thanks to MET's Safe-T Advanced Fit System, it accommodates a wide range of head shapes. Its rear micro adjust dial offers very precise movements of 2mm per click on the horizontal adjustment and the 4 steps of vertical adjustment help you find the perfect fit. The contact points have large cradle surfaces and comfy polyurethane padding, helping to reduce pressure points while keeping weight low and allowing the back of the head to breathe.

Another detail we've really come to appreciate is its included DualGel front padding. We found that since it's a gel pad that doesn't absorb perspiration, it keeps our head cooler, keeps perspiration from running into our eyes, and it offers a much longer life span than the traditional foam padding. Additionally, it better conforms to the shape of your head and is hypoallergenic and antibacterial.

Lastly, the Manta is compatible with MET's USB LED light (sold separately) and includes a rear reflective sticker for safety.

  • An aero helmet that doesn't skimp on weight or breathability
  • Low-profile design is ideal on any ride
  • Safe-T Advanced fit system offers a precise fit
  • DualGel front padding is comfortable and keeps perspiration out of eyes
  • NACA crown duct introduces airflow without hurting aerodynamics
  • Saves a claimed 10 watts at 50km/h
  • Reflective rear sticker and MET USB LED light device compatibility (sold separately)increases visibility
Tech SpecsSize
Tech Specs
This product can expose you to chemicals including Bisphenol A (BPA), which is known to the State of California to cause birth defects or other reproductive harm. For more information go to
Shell Material
In-Mold polycarbonate
Impact Foam
shock absorbing polystyrene
13 vents
Fit Adjustment
Safe-T Advanced
Recommended Use
cyclocross, gravel, road cycling, track, triathlon
Manufacturer Warranty
2 years


Estro, Veleno
Head Circumference 21.2 - 22.4in
(54 - 57cm)
22.8 - 24in
(58 - 61cm)
Head Circumference 21.2 - 22.8in
(54 - 58cm)
23.2 - 24.4in
(59 - 62cm)
 One Size
Head Circumference 21.2 - 24in
(54 - 61cm)
How to Measure:
Measure around your head where your hat would fit comfortably.

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Noisy & hot as heck.

  • Familiarity: I've used it several times
  • Fit: True to size
  • Size Bought: Medium

I picked up this helmet to try and buy a bit of speed. It hasn't worked out all that well. It fits true to size but doesn't hug the head as well as some other brands. I have also found it to be rather noisy, and if it happens to be a hot day . . . I thought I was going to get heat stroke. Obviously, I get it that aero helmets don't cool as well as traditional helmets, but this is the hottest one I've worn. I put it away until the winter.

Fits like a Met

  • Familiarity: I've used it once or twice and have initial impressions
  • Fit: True to size
  • Size Bought: Medium

The Met sizing is prefect for my 55cm head that is right on the extreme end of most other helmet manufacturers. Plenty of adjustment either way with the Met medium helmets for me. I bought this to replace a Met Rivale that got rekt in a hard crash and the fit is the exact same.

Would give it 5 stars, but it is way over the weight that Met advertises - mine tips the scales at 270 grams. Wish it was 200, but I probably still would have bought it even if it was advertised at 270.