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Giro Synthe Helmet (MIPS)

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Faster is cooler; the Giro Synthe Road Cycle Helmet (MIPS) is the pinnacle of road helmet design and is now available with MIPS technology for added impact protection. A proven race winner, the Synth offers maximum comfort for every bike ride.

Faster is cooler; the Giro Synthe Road Cycle Helmet (MIPS) is the pinnacle of road helmet design and is now available with MIPS technology for added impact protection. A proven race winner, the Synth offers maximum comfort for every bike ride.

Top Features:

  • Sizing Note: Sizing as per size guide.
  • Aerodynamic design
  • Featherweight Webbing with Slimeline buckle
  • Roll Cage internal reinforcement
  • Ponytail compatible
  • In-mould polycarbonate shell
  • Thermoformed SL reinforcement
  • Roc Loc Air-Fit system
  • 26 Wind Tunnel vents with internal channelling
  • Weight: 254g (CE Medium)

Product Data

  • Aero Helmet: Yes
  • MIPS: Yes
  • Cyclocross: Yes
  • Road: Yes

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Description

Protection legends Giro and MIPS (Multi-Directional Impact Protection System) come together at last in the stylish and effective Synthe Road Cycle Helmet. Keeping your head still in the event of certain impacts (you can find the science bit below), along with a Roll Cage™ reinforcement with the EPS (Expanded Polystyrene) foam liner. But improved protection doesn’t mean reduced aero performance thanks to ventilation perfected in the wind tunnel. This elaborate design combines active vents in the helmet’s shell with exhaust channels inside the helmet that thrust fresh, cool air over and around the rider’s head while forcing heat and stale air out. It’s the most effective cooling system available, and a difference you can feel every time you ride.

Roc Loc® Air-Fit System 

This revolutionary fit system adds a new dimension to helmet performance by enhancing cooling, as well as fit comfort and stability. Using a patented design that suspends the helmet just slightly off the top of the skull, Roc Loc® Air allows cool airflow to pass directly over your head, further enhancing the performance of vents and internal channelling that exhaust heat out of the helmet. Fit and feel adjustments mimic the Roc Loc® 5, allowing you to easily custom tune fit tension and fore-aft tilt of the helmet in seconds using a single hand.

Roll Cage™ Reinforcement 

The Roll Cage™ is a light-yet-tough web of reinforcement invisibly moulded inside a helmet’s foam liner. It helps the helmet to hold together under impact and provides an extra measure of strength and integrity that you’ll never notice...unless you need it.

 What is MIPS? 

• MIPS is a Brain Protection System

• Rotational motion can cause brain injuries

• The low friction layer allows a sliding movement of 10–15 mm, in all directions, reducing rotational motion to the brain during impact

• MIPS adds protection

 Giro Crash Replacement Scheme

If you have an accident in any helmet it's a good idea to replace it. Giro offer the peace of mind that if you have an accident wearing one of their helmets they will replace it at a reduced price.

Read More

Size Guide


XS S M L XL
Head Circumference cm 47 - 51cm 51 - 55cm 55 - 59cm 59 - 63cm 61 - 65cm
XS S M L XL
Head Circumference inches 181⁄2″ - 201⁄8″ 201⁄8″ - 212⁄3″ 212⁄3″ - 231⁄4″ 231⁄4″ - 244⁄5″ 24″ - 253⁄5″

Returns

We will happily refund any item purchased on Wiggle if returned to us within 365 days; excluding Wiggle gift vouchers, nutrition and customised products, except when faulty.

Please note: Bikes and other bulky items cannot be returned using our local returns service (where applicable). Please contact us and we can arrange to collect these from you using our discounted courier rates. There is a fee for all collections, except for faulty products.

Returned goods must be unused and supplied with their original packaging, unless the goods are faulty. Wiggle will pay the return postage costs for any faulty items.
More information on Wiggle's return policy

Customer Reviews

Giro Synthe Helmet (MIPS) is rated 4.8 out of 5 by 61.
Rated 5 out of 5 by GeorgeyT from Super light weight I agree with the other reviewer who said about the clasp being very basic and not very good for the price. I struggle to undo it! Needs to be redesigned by Giro. However the helmet itself is super light and very comfortable. I had to place tape in the inside of the helmet as my hair gets pulled out by the MIPS joins. Think that could be better designed too. If it's light weight and airy you are looking for then this is the helmet for you!
Date published: 2021-01-19
Rated 4 out of 5 by GRRRGRRR from excellent apart from chin straps/buckle superb fit, quality and comfort. chin strap is basic and difficult to uncouple and it adjusts on its own. would buy again, just wish they'd redesign the chin straps and buckle which haven't changed in a decade + and haven't been good for that same duration!
Date published: 2020-12-27
Rated 5 out of 5 by MistressQuickly from Beautiful helmet (Not a mushroom) Very aesthetically pleasing and absolutely true to size. Tried the Kask protone and returned due to mushrooming
Date published: 2020-12-02
Rated 5 out of 5 by bluebird from Great fitting helmet Great looking multi choice colour scheme,really good comfortable, easy fit adjustment light helmet
Date published: 2020-09-24
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Q & A

My head size is 55cm. Should I go for S or M?

Asked by: WILLjp
I would suggest going for the medium. It will give you a little wiggle room should the small only just fit you.
Answered by: WiggleRickL
Date published: 2019-12-29

Is the internal liner removable so it can be washed & or replaced?

Asked by: AH65
You can remove the padding pieces inside the helmet to clean and these will be installed with some small Velcro pieces.
Answered by: WiggleTomS
Date published: 2021-02-22

Size

My head circumference is 58.5. Will i be ok in a M?
Asked by: PierSydney
I got similar issue as you did. My head circumference is around 59. I would say it would probably be safer for you to get a size large, as the internal MIPS layer adds extra thickness.
Answered by: JerryJ
Date published: 2020-09-28

Can you wear glasses with this helmet?

Hi. Do you know if you can wear glasses with this helmet? Many thanks. Matt
Asked by: Matt280775
Yes, they work very well with them.
Answered by: Theoh63
Date published: 2020-10-12

Is this the 2019 model?

Is this the latest model of the Synthe? Thanks
Asked by: Macolyte
This is the latest model available as per the Giro site: https://www.giro.com/eu_en/synthetm-mips.html/
Answered by: WiggleMattT
Date published: 2019-02-14

Does this come with a helmet box?

Asked by: cycleboo
A case is not supplied.
Answered by: WiggleKris
Date published: 2016-07-21

Weight of small

What is the weight of the small, please?
Asked by: Susie35
Unfortunately the manufacture has only provided the weight of the medium: 254g In order to answer your question in more detail, we would ask you to contact us via live chat or email via the contact us page: https://www.wiggle.co.uk/ContactUsForm
Answered by: WiggleTim
Date published: 2019-04-17

My head size is 59cm, would I be medium or large?

Asked by: LukeB77
We would suggest going up to the Large if you are between sizes.
Answered by: WiggleRickyR
Date published: 2017-11-21

My 11-year-old son’s size is 54, would you say S or M?

Asked by: jenniferyeung
We would advise the small.
Answered by: WiggleAidan
Date published: 2020-02-12
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Wiggle Ltd. 1000 Lakeside, Suite 310, Third Floor N E Wing, Portsmouth, Hampshire, PO6 3EN, United Kingdom

VAT No: GB 884 2571 94 | Company No: 02667809

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Privacy Policy | Cookie Policy | Terms & conditions

© Wiggle Ltd. 2021.

Wiggle Ltd. 1000 Lakeside, Suite 310, Third Floor N E Wing, Portsmouth, Hampshire, PO6 3EN, United Kingdom

VAT No: GB 884 2571 94 | Company No: 02667809

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