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Giro
Synthe MIPS Helmet

  (65 customer reviews)
In Stock Now
ea.
$224.95
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Aerodynamic, comfortable or safe? Pick three.

The debate between "aero" and comfort is over. The Giro Synthe has the most efficient aerodynamic profile of any of Giro's previous road helmets while also touting better cooling power than their lightest weight Aeon™. And now with MIPS Multi-directional Impact Protection System, the Synthe is safer ever before.

MIPS was developed by brain surgeons to reduce rotational forces on the brain upon impact during real-world cycling accidents. A patented slip plane inside the helmet allows the helmet to slide 10-15 mm upon impact. cradling your head to reduce the friction coefficient redirect the force of the impact, while still allowing unobstructed ventilation.

The Synthe's design is made possible thanks to a wind-tunnel aided design that uses integrated mesh panels to reduce drag and internal ventilation channels working in tandem with a Roc Lock® Air fit system that effectively suspends the helmet just over the skull to improve airflow.

The fit is micro-adjustable with a one-handed dial adjuster, and the X-static® padding keeps it plush and fresh. Among the 19 external vents, there is also a dedicated sunglass docking port to stow sunglasses when they're not in use, and featherweight webbing with a Slimline™ buckle help keep the weight of this helmet down to a claimed 270 g for a size Medium.

Recommended as one of Bicycling Magazine's top helmets of 2016.

270 g. Available in multiple colorways. Ponytail compatible.

Unisex sizing. Small: 20-21.75" head circumference just above ears. Medium: 21.75-23.25" Large: 23.25-24.75"

SML
Head Circumference20"-21¾"21¾"-23¼"23¼"-24¾"   
 

Matte Black - Small

Mfg PartNum: 7066352 

Matte Black - Medium

Mfg PartNum: 7066353 

Matte Black - Large

Mfg PartNum: 7066354 

White/Silver - Small

Mfg PartNum: 7066367 

White/Silver - Medium

Mfg PartNum: 7066368 

White/Silver - Large

Mfg PartNum: 7066369 

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(58)
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Great fit and protection.
rating
by Anonymous
Cycling Enthusiast
Brunswick, ME

I'm on my third Giro Synthe Mips. They fit me really well, are incredibly lightweight, and protect your head really well. I've had a couple of serious knocks in the head, serious enough to warrant a new helmet, and the Synthe Mips protected me head really well.

Reviewed 9/10/2018
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From Atmos to Synthe MIPS.
rating
by avmartel
Competitive Racer
Minneapolis, MN

After 5years of use had to retire my trusty GIRO Atmos...Hello Synthe! Lightweight, good aero profile while very well vented and MIPS tech upgrade are all quite welcome. The interior is well cushioned and the straps are snug and comfy on your face. the dial ratchet is really adjustable and works better than the Atmos press-on system. Color schemes of all types avail..my white red orange gets plenty of nice lid remarks during training rides.

Reviewed 8/20/2018
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Nice and light weight
rating
by Anonymous
Cycling Enthusiast

After I ordered, I wished I had a visor for when I go mountain bike riding, but really I wouldn't change a thing. This helmet was a HUGE upgrade than my current helmet.

Reviewed 10/1/2018
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Even MORE comfortable than the Savant
rating
by PJF
Cycling Enthusiast
Essex, CT

I had been using a Savant MIPS, upgraded to the Synthe MIPS when there was a sale, and love it. It's so comfortable I hardly even think about it while riding, other than occasionally adjusting the micro adjuster, which I can do on the bike. The micro adjuster is extremely handy to compensate for the change when I put a skullcap on or off in the winter. I also like that the height of the rear band mount is adjustable, easy to get the fit snug but not tight. The sunglasses dock seems mainly useful for pros (who have sunglasses sponsors) or folks who wear cheap sunglasses. Me, I need glasses to see where I'm going so (a) I'm not going to take them off while riding and (b) even if I did, they are Transitions Progressive lenses, which are FAR too expensive to risk leaving perched on the helmet where they might fall to the ground if I forgot they were there when I removed my helmet. And if they fell off and broke, finding my way home would be a problem! So I just keep my glasses on and fasten the helmet straps over them.

Reviewed 4/21/2017
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Great Helmet, Great Fit
rating
by Bengee
Cycling Enthusiast
New Jersey

I ride 20 miles on the weekdays (2-3 days per week) and 35-50 miles a day on the weekends, so I am in my helmet quite a bit. I love the fit of the cage on this helmet - it is very snug. I also like the materials that are used for cusion - they are not absorbant and seem very durable. About the only negative I can find is that there is a structural band that goes from left to right across the helmet that limits attaching lights to your helmet if you do early morning or late night riding.

Reviewed 8/24/2018
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Giro Synthe MIPS
rating
by Anonymous

Great fit, excellent air flow

Reviewed 6/28/2018
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I really love this helmet
rating
by GDS-PDX
Cycling Enthusiast
Portland, OR

The Giro Synthe is an all around great helmet. It's light and breathable, yet it feels really secure on your head. It can easily accommodate a cap with the visor flipped up, yet somehow also sits nicely low on my forehead. The venting is very good yet the helmet it quiet and does not create a lot of wind noise. I'm very impressed!

Reviewed 6/29/2018
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I have owned nothing but Giro helmets for years and this is the best yet.

Very comfortable. Like the secure feeling and adjustment with the MIPS system.

Reviewed 8/24/2018
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Very happy
rating
by Dpgoodman
Vancouver

Comfortable helmet, looks nice, and appreciate the sun glasses holder. Luckily havent experienced the helmet ina wreck, but Im sure it will work.

Reviewed 6/14/2018
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Awesome helmet!
rating
by Anonymous

Loving the matte black finish to the helmet. Also easily the lightest helmet I've ever had. Fit adjustment works great, and the MIPS seems like it would work. Really loving the sleek look that Giro puts out.

Reviewed 5/25/2018
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Saved my head in a crash
rating
by Bike Dogter
Cycling Enthusiast
Portland, OR
0 of 1 customers found this review helpful.

I am sold on MIPS after crashing and seeing how the impact force was distributed. Broke the helmet and didn't feel the impact as much as I had expected. I immediately replaced the helmet with a new Synthe MIPS. My prior helmet was a Giro Pro-light which was not as heavy as the Synthe, but I consider this a fair trade-off, though I do miss the lighter helmet.

Reviewed 8/17/2017
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Excellent Helmet
rating
by TexasCyclist
Competitive Racer
Texas

This is a great light helmet with excellent ventilation and improved safety utilizing the MIPS system. This is my everyday helmet and I recently wore it while racing at the National Senior Games in Birmingham, AL finishing on the podium twice.

Reviewed 7/17/2017
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Perfect for big heads
rating
by mlongman
Cycling Enthusiast
Seattle, WA

It just looks fast! I love this helmet. I inherited my mothers large head so it looks like a normal sized one when I wear it. Excellent styling and stoked about MIPS.

Reviewed 6/22/2017
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Most Comfortable Helmet EVER.
rating
by Anonymous
Cycling Enthusiast
Silver Spring, MD

I've been using Giro helmets since the first model came out with the hairnet cover. At least two mountain bike helmets, a couple of Atmos, and now the Synthes followed.

I bought my first Synthe MIPS because it was so damn comfortable finally a helmet that fits!

I bought my second Synthe MIPS because when I crashed the first one very hard I had never felt a softer landing from a helmet (and Ive broken 4-5 over the years.)

Added plus I like the color (matte whitesilver) and I got it on sale. A whole-hearted recommendation.

Reviewed 3/17/2018
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Excellent helmet, light, well ventilated, comfortable
rating
by Dave Christ
Phoenix Az
1 of 1 customers found this review helpful.

I have been using Giro helmets for almost 20 years including the Pnuemo, Atmos, Ionos, Aeon and now the Synthe MIPS. The Synthe is the most comfortable helmet I have ever worn. It is not as light as the Aeon but because of the fit and the excellent ventilation it feels as light. I ride 200 miles a week in the Phoenix Az area and really appreciate the fit and ventilation of the Synthe.

Reviewed 2/23/2017
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GIRO SYNTHE MIPS ROAD HELMET
rating
by Ray
Cycling Enthusiast
Johnstown, PA

I have not worn it on the bike yet, but I have tried it on and it fits great like all of my previous Giro helmets.

Reviewed 2/2/2017
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Most comfortable helmet I have ever worn
rating
by Michael
Cycling Enthusiast
Portland, OR

This is definitely the best helmet I have owned. Very comfortable and nice looking.

Reviewed 1/1/2018
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Feels a little on the smaller side, but still solid
rating
by K-Rad
Washington, DC

I wore two Giro Savant helmets over the last 4 years but recently decided to upgrade to the Synthe. I chose the Synthe because it seemed to have a cool, sleek, more modern feel to it, and the color choices were excellent to boot. After riding with this helmet daily for a few months now, I can say for certain that its awesomehowever, Im not sure Id purchase a helmet online again without trying it on in person since this helmet feels just slightly smaller than my old Savant did, even after adjusting both the rear dial and chin straps. That said, Id still recommend this helmet to anyone looking for a higher quality upgrade.

Reviewed 12/4/2017
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Great helmet
rating
by Ben
torrance

The design is awesome and better yet, customer service was top notch. Fast shipping and great prices.

Reviewed 11/1/2017
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Great Helmet
rating
by Geoffrey
northern California

My new Synthe replaced an older Giro helmet. About my fourth ride with it it was put to the test! I got hit by a school bus that was pulling out into the street (without noticing me). Though my head struck the pavement it did not sustain injury, though ribs and collar bone sustained some factures.

Reviewed 10/23/2017
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