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Giro Synthe MIPS Helmet

Model Year
Helmet Size
£132.30 £34.80 discount
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  • Free tracked delivery
  • Trustpilot review 9.3 out of 42.772 reviews

Pros & Cons

  • The MIPS system makes the helmet even safer.
  • Aerodynamic yet well ventilated due to the 16 vents.
  • Compact design makes the helmet look good on your head.
  • The finish isn't perfect.
  • Somewhat inflexible straps.
Read more on what our customers have to say about this product


Brand Giro
Type of Racing Helmet All-round helmet
Weight 286 grams
All specifications


The Giro Synthe Mips is the pinnacle of Giro's helmet design. This modern helmet offers impressive cooling performance, minimal weight, a perfect fit, and sleek aerodynamic efficiency. The difference really showed during Giro's extensive wind tunnel testing. In fact, the Giro Synthe proved to be as aerodynamic as numerous time trial-specific helmets! The best properties of the Synthe: comfort and cooling. At the heart of the helmet is the RocLoc Air Firt system. This system raises the helmet fractionally above your head, creating enough space for air to flow through. This system also allows you to adjust the tension on the head band as well as the forward/aft tilt. No longer be faced with a choice between aerodynamics and cooling: the Giro Synthe can do both!

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Model Year 2017 / 2018 2017 2017 / 2018 2018 / 2019
Type of Racing Helmet All-round helmet All-round helmet All-round helmet All-round helmet
Helmet Size S / M / L / 51 - 55 cm S / M / L / 51 - 55 cm S / M / L / 50 - 56 cm S / M / L / 50 - 56 cm
Colour Bright Red / Matte Black / White / Fluo Yellow / Matte Black / White / Silver / White / Red Matte Black / Matte Silver Nero / Bianco / Blue Matt / Nero Lime / Nero Matt / Nero Matt-Rosso Hydrogen White / Navy Black / Prismane Red
Head Circumference 60 - 63 / 51 - 55 / 56 - 59 51 - 55 / 56 - 59 / 60 - 63 59 - 62 / 52 - 58 / 50 - 56 50 - 56 cm / 54 - 60 cm / 56 - 62 cm
Weight 286 grams 215 grams / 234 grams / 264 grams 228 grams 198 grams
£132.30 £119.95 £139.00 £129.95
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9.3 / 10 Average from 94 reviews | Write a review
9.3 / 10

94 reviews


  • Light (10)
  • Comfortable (8)
  • fit (7)
  • Lightweight (5)


  • price (4)
  • cost (2)
  • Not exactly cheap (1)
  • Chin strap works it’s way loose over time (1)

Most recent reviews

10 / 10

Peter, 7 December 2018

Great Helmet - light and aero

Really like this helmet with the fit being very good, light weight, some aero features, lots of ventilation and style. Highly recommend this one to your consideration list!


  • Light weight
  • Good fit
  • Aero
  • Style

9 / 10

Barry, 15 November 2018

Top service - top product

Have researched all the top helmets over the last 3 months and this got top reviews. I now know why ; looks good,feels good , light and airy and quality. Service from Mantel was excellent. Took 4 days only to be shipped from Holland- was kept informed everyday of delivery status - brilliant.

9 / 10

Mark, 1 October 2018

Great looks, great fit

Iconic design and best compliment of all, I just forget about it when riding, such is the comfort and lightness.


  • Looks
  • MIPS
  • Light
  • Comfortable


  • Not exactly cheap
  • Chin strap works it’s way loose over time

10 / 10

Derek, 28 August 2018

Safety first

Love this helmet as it's really light and comfortable. This is my second Giro Synthe MIPS helmet, i bought my first one last year and it has been the best helmet i've purchased, the only reason i've bought another one so soon is because i had a bad accident in my bike 5 weeks ago. I landed on my head and shoulder, and i believe if it wasn't for the MIPS i would have came a lot worse off (maybe wouldn't be here now) Just a pity i can't say the same for my shoulder though.


  • Ligjt
  • Comfortable
  • Mips (extra safety)


  • Price

9 / 10

Nicholas, 1 July 2018

Good high performance helmet.

Light weight. Good adjustability. Comfortable but a bit warmer than the my old helmet. Difficult to judge the aero claims. The MIPS internals appear to add adjustability.


  • Good adjustability.
  • Light weight.
  • Comfortable fit.
  • MIPS


  • Warmer than some.
  • End of straps flap about.
  • List price too expensive.

All specifications

Detailed product description

Roc Loc Air Fit system:
The Giro Roc Loc Air system is specially developed for the Giro Airo helmets. This new system ensures the helmet floats a little bit above your head. As a result there is a good airflow over the top of your head what ensures a good ventilation. Just like the Roc Loc®5 system the helmet can be easily fine-tuned. The tension around the head and the vertical position can be adjusted with one hand. With this Giro sets the new standards for ventilation and comfort.

MIPS System:
The MIPS System exists out of a low friction interlayer between the EPS lining and padding with an elastic fixation. This allows the helmet to move (slide or rotate) during a crash. It will move around your head to catch the side and rotational forces that could occur during a crash. This in contrast to a helmet without MIPS, whereby the impact is only collected by compressing the EPS lining.

Wind Tunnel Ventilation:
Giro helmets are developed using its Giro Wind Tunnel ventilation system. This system combines the active vents with the internal ventilation outlets. This combination ensures a cool, fresh air flow over and around the riders head, while forcing the heat and stale out. The renewing of these ''air channels'' turns out to be a huge success. The riders were real enthusiastic, they noticed the new ''air flow'' around their head, resulting in a better cooling!!

In-Mold Construction:
The In-Mold Construction combines a strong polycarbonate outer shell with
shock absorbing helmet padding. Thanks to its fusion process it is possible to sculpt a better ventilation system, so the In-Mold helmets are lighter and cooler than most traditional helmets.

X-static Padding:
Besides the fact they are comfortable The X-static pads ensure anti-microbial properties to keep your helmet longer clean . The pads are machine washable.

Additional information

• Wind Tunnel Aided Design for aerodynamic efficiency on the road
• Integrated Aero Mesh Panels (ideal storage place for your glasses)
• Super Lights X-Static pads
• New composition of EPS foam, lighter and stronger than before
• 19 vents; designed and shaped with wind tunnel technology
• Roc Loc Air system
• Sizes: S (51-55 cm), M (55-59 cm), L (59-63 cm)