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  • Giro - Synthe MIPS Helmet - Matte White/Silver
  • Giro - Synthe MIPS Helmet - Matte Red
  • Giro - Synthe MIPS Helmet - Matte Iceberg/Midnight Bars
  • Giro - Synthe MIPS Helmet - Matte Black Floral
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  • Giro - Synthe MIPS Helmet - Matte Olive/Citron
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Giro Synthe MIPS Helmet

sale $109.95 - $239.95

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Select style & size:

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  • Select options
    • Matte Olive/Citron, S
      sale $109.95
    • Matte Olive/Citron, M
      sale $109.95
    • Matte Dusty Purple, S
      sale $109.95
    • Matte Dusty Purple, M
      sale $109.95
    • Matte Dusty Purple, L
      sale $109.95
    • Citron/White, M
      sale $119.95
    • Matte White/Silver, S
      $239.95
    • Matte White/Silver, M
      $239.95
    • Matte White/Silver, L
      $239.95
    • Matte Red, S
      $239.95
    • Matte Red, M
      $239.95
    • Matte Red, L
      $239.95
    • Matte Iceberg/Midnight Bars, M
      $239.95
    • Matte Iceberg/Midnight Bars, L
      $239.95
    • Matte Black Floral, M
      $239.95
    • Matte Black Floral, L
      $239.95
    • Matte Black, S
      $239.95
    • Matte Black, M
      $239.95
    • Matte Black, L
      $239.95

    4.5543

    43 Reviews

    Details

    Synthe MIPS Helmet

    A classic choice for the riders in the pro peloton and self-sponsored cyclists alike, the Giro Synthe MIPS Helmet blends lightness, ventilation, and now MIPS protection to only further solidify its beloved status amongst the Lycra set. One of the major characteristics setting the Synthe MIPS apart from other similar models is the safety of MIPS; MIPS, or Multi Directional Impact Protection System, refers to the Swedish technology added to the helmet in the form of a thin inner layer that rotates slightly upon impact to absorb the brain-damaging rotational energy created in certain crashes. With less rotation comes less likelihood of a brain injury when you take a spill.

    Impact protection is usually a feature of helmets you'd rather not put to the test, however, and it's far from the only one that's important. When you're out on a ride, the Synthe's iconic aerodynamic shaping helps reduce drag in the wind, while 19 airy vents work with Aero Mesh Panels to strategically usher air across your head to let heat continuously escape. Giro's Roc Loc Air adjustment system makes fine-tuning the fit of the helmet before a ride quick and easy, so you can make adjustments in the driveway without taking up valuable ride time. When you finish your ride and head to the coffee shop, use the eyewear docking ports to safely perch your pricey sunnies and avoid having them fly off your helmet when you turn your head — it's just another thoughtful touch of many that have helped earned the MIPS its respected reputation.

    • An all-purpose aerodynamic road cycling helmet
    • Proven at the highest levels of cycling
    • In-Mold construction increases impact resistance
    • Adjustable fit cradle accommodates ponytails
    • Generous ventilation so "aero" doesn't mean stifling
    • An optics perch holds your glasses while you climb
    • Giro has set a new standard in understated, functional cycling design
    • Item #GIR00AA

    Tech Specs

    ⚠️ WARNING
    Reproductive Harm - P65Warnings.ca.gov
    Shell Material
    In-Mold polycarbonate
    Impact Foam
    EPS
    Ventilation
    25 Wind Tunnel vents, internal channeling, Aero Mesh Panels
    Fit Adjustment
    Roc Loc Air
    Visor
    no
    Certifications
    CPSC
    Claimed Weight
    [medium] 270 g
    Recommended Use
    cycling
    Manufacturer Warranty
    1 year

    Tech Specs

    California Proposition 65

    Warning:

    Reproductive Harm - P65Warnings.ca.gov

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Overlooked detail by designers

    • Familiarity: I returned this product before using it
    • Height: 5'7"
    • Weight: 150lbs

    I read reviews and was set to spent $200+ for a Giro Synthe MIPS helmet. Then, I tried one on. I couldn’t believe such an expensive helmet with incredible design features would have such a cheap chin strap. A nylon/polymer strap!!! The strap was uncomfortable and I would bet would be chaffing and irritating. I was expecting leather or at least synthetic leather. Needless to say, i’ll Choose a different helmet.

    does the trick for road & gravel

    • Familiarity: I've put it through the wringer
    • Fit: True to size
    • Size Bought: Medium
    • Height: 5'7"
    • Weight: 135lbs

    Super comfortable, reliable Giro fit. Straps easy to adjust, fit wheel works well. Disappears on my head.

    Works ok

    • Familiarity: I've put it through the wringer
    • Fit: True to size

    It's a nice helmet for sure, but I expected a bit more. I've always had Giro helmets and it was time to replace my old one, so after looking around, I settled on the Synthe. I would have thought that a fairly high end helmet would have some significant improvements over the 10 year old model it was replacing, but... not really, besides maybe MIPS, although I hope I never put that to the test.

    And, irritatingly, the smaller sweat pads seem to channel more sweat to the middle of my face/glasses/nose than the old helmet did.

    GIro Synthe - love it but..

      I have been wearing the Giro Synthe helmet for years. It's great, looks good, is light, comfortable and not hot to wear. However, for the new MIPS version the Sythne in size small is smaller than the non-MIPS small. I have always worn a size small Sythne with a cycling cap under it. But this MIPS version of the Sythne is a smaller small, I can't wear a cap under it like I normal do. I had to return it.. Just fyi for those looking to replace their Sythne helmet in size small, like I was.

      Giro helmet

      • Familiarity: I've put it through the wringer
      • Fit: Runs small
      • Size Bought: medium
      • Height: 5'10"
      • Weight: 154lbs

      I have used Giro synthe helmets for a few years. My last one's liner just cracked due to a crash so I replaced it with this MIPS system. Great helmet - ventilation is superb. You may need to go up a size because of the MIPS insert. I ordered a medium and had to return it for a large - no hassle from CC. My only issue is that no one seems to make the replacement padded insert which goes at the front of the helmet. The original pad is fine, but after washing off the sweat a few times, it falls apart.

      Seems like a great helmet

      • Familiarity: I've used it once or twice and have initial impressions

      I haven't actually used this quite yet, haven't been able to go for a ride yet this year, but looking forward to it! This seems like a really good helmet, incredibly lightweight and comfortable when I have just tried it on! Will update with more information when I get the chance to use it!

      Great helmet

      • Familiarity: I've put it through the wringer
      • Fit: True to size
      • Size Bought: L
      • Height: 6'1"
      • Weight: 180lbs

      I tried on the Zephyr and several others, and this one is very comfortable and easy to wear. Perfect helmet. Lightweight but his MIPS protection, and it'c comfortable.

      Lightweight Helmet

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

      I’ve used Giro for many years and never disappointed. At first I was a little skeptical about the MIPS due to fit issues, but once worn it feel nice and easy to adjust.

      Simply benchmark

        I love the Giro Synthe. I own both MIPS and non-MIPS versions now. I can confirm that the MIPS version fits just slightly, slightly smaller than the non-MIPS version. So if you're on the fence sizing-wise, go with the larger size.

        I love the aerodynamics and quietness of this helmet. If you compare the Synthe to previous top all-around road helmets (S-Prevail, Giro Aeon, Giro Ionos), helmets I rode in for years, there is no comparison. The Synthe is significantly quieter, especially when you put your head down during hammertime.

        By the way... Greg van Avermat won the Olympic Road gold and the 2017 Paris-Roubaix wearing... the Giro Synthe helmet.

        Light and looks good!

          I've tried several helmets this year, and I've landed on this one and am very happy. It looks pro because some of the racers in the world tour peloton use this helmet. It's lightweight and has the added bonus of being a MIPS helmet.

          Light and comfy

          • Familiarity: I've used it once or twice and have initial impressions
          • Fit: True to size
          • Size Bought: Large (24.5" circumference head)

          Initial ride was 5 hours, hot, humid, and rainy at times.
          6-12% grade hour long climb it didn't get too hot.
          10 minute 40mph descent it didn't get too windy.

          Superlight, well ventilated.

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

          When I first pulled this helmet out of the box, and saw almost no padding whatsoever inside and no extra padding in the box, I thought for sure that my review was going to end up being a negative one, and yet it isn't.

          Giro's current top end road helmet (I'm not counting the Vanquish aero helmet), is one of the lightest and most comfortable I've ever had the opportunity to wear, because while the padding is minimal, it's perfectly situated.

          A lightweight helmet is really important to me as well. I have degenerating discs in my neck, and relatively weak muscles. Because of this, any extra weight on my head can put stress on my neck muscles when trying to hold my head up in riding position. On today's inaugural ride in this helmet, I barely noticed the weight of the helmet at all.

          My lack of fitness, on the other hand, I noticed right away, and while there were lots of times I was struggling on the bike, none of them were neck related. To me right now, that's worth a 5-star review.

          And the added benefit of MIPS protection would bump it to a 6-star review if I had that option.

          Very Nice

          • Fit: True to size
          • Size Bought: Small

          The helmet was awesome in every way but was too small so I returned it. I purchased it on sale, size small (clearance?) and it's definitely worth it if you have a small head.

          One of the Best!

          • Familiarity: I've put it through the wringer

          Bought this helmet as a gift. Here is what they had to say about it - "One of the best helmets I have ever used. The fit is great and the ventilation is really awesome. Very comfortable even after hours in the saddle. I've been using this helmet for road rides, road races, and cx races. Love knowing I have the extra protection of MIPS."

          An excellent helmet!!!

          • Fit: True to size
          • Size Bought: small

          I used this helmet for a year and a half to two years and it has been exceptional. The small size fit my 21.5" head perfect and when I recently had a bike crash it kept my head safe and it did not move from it's original position at all.

          Synthe MIPS

          • Familiarity: I've put it through the wringer
          • Fit: True to size
          • Size Bought: Medium

          I loved my original Synthe Titanium and rode it for several seasons. Had to replace it after a crash in the fall and decided to upgrade to the MIPS for extra safety. Fits exactly the same as the original and breathes just as well. I don’t plan to ever switch from this helmet except for future renditions. Couldn’t care less about the Aero claims, but I guess it’s a plus.

          Nice Helmet

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

          I couldn't decide if I wanted to put that much money in a helmet, but I am glad I did. Researched several different helmets and finally decided on the Giro Synthe MIPS. I have been wearing a Giro Atmos II and wanted to get a helmet with MIPS. It is one of the most comfortable helmets I have worn and is very easy to adjust. The helmet looks great and I could not be more pleased.

          Synthe MIPS Titanium

          • Familiarity: I've put it through the wringer
          • Fit: True to size

          Great colour. Helmet is nice and light. I also have a Foray and this fits the same. The Synthe is a beautiful helmet and has MIPS but I'd have to say the cheaper Foray is much the same as the Synthe and way better value. I had a crash with a Foray and wrote the helmet off but my head was good and the Foray didn't have MIPS. Personally I'm not so sure that MIPS is the great miracle life saver but maybe it is.

          The Synthe wins

            The Synthe is simply brilliant, and I mean that literally. You could almost miss it, which is why I love it so much. The other big hitters in the high-end helmet game (Octal, Z1, Protone, Overtake) are the figurative extroverts of the cranial protection world, and for some, this is a positive, but for the vast majority of the population, your fashion taste may be called into question. "He looks like a marshmallow." The Synthe's is always going to be the safe and classy option.

            In the modern day, any helmet over $200 is going to be fantastic. They all ventilate well, they're all held to the same high safety standards, and they're all shockingly light. The Synthe differentiates itself by being delightfully straightforward. It employs the same, mind mindbogglingly simple tightening system as it's entry level siblings, instead of some contrived, bizarre systems that some of it's competitors use. (I'm looking at YOU Lazer.) One of my only gripes with this helmet is that the "sunglass garage" doesn't really work, or at least, not much better than sliding your shades into the vents.

            As far as the MIPS/non-MIPS debate in concerned, yes, this helmet is slightly heavier than the non-MIPS version. Yes, it does not ventilate as well. Yes, it will occasionally catch some hair. At the end of the day though, even a marginal safety gain is worth it when you're talking about your head, and I say that as a guy who didn't even have that may brain cells to begin with. Just go for MIPS, be stingy when it comes to bottle cages, not your brain.

            Really, you can't go wrong with the Synthe, and especially now, when they're on mega sale. Just go for it.

            If you have any questions, feel free to reach out to me directly at jdraper@backcountry.com. (final note: the Synthe pairs wonderfully with an Oakley Jawbreaker)

            Not as good a fit or feel as the Aeon

            • Familiarity: I've used it once or twice and have initial impressions

            I am going to buck the trend of unlimited praise for the Synthe. I mean, of course it is a nice helmet. But I got both it and the Aeon and ended up preferring and Aeon for a couple reasons. First, the fit of the Synthe is not as good for me--and fit in a helmet of this quality is enormously important. I did not find the adjustments worked for my head, which is large and not as round as the Synthe shape. The only way I could get a good fit was to tighten the Synthe to the point of unpleasant pressure. The Aeon, by contrast, is more the traditional Giro shape, a little more long fore-to-aft and narrower side-to-side. The second aspect is what my wife spotted as soon as she saw me with the helmets on-the Aeon looks better. The Synthe is round, sits very high, and is more like wearing a mushroom. The Aeon, again in the traditional style of Giro, is less round, sits closer to the head, and looks, well....faster! As for MIPS, to my mind, the jury is still out on its actual value and how to best implement the concept. In the meantime, my new Aeon is comfy and beautiful.

            How does this fit in comparison the a medium Aeon? The Medium Aeon is a perfect fit for me - if I went to a Large, it would way too big.