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Giro
Synthe MIPS Helmet

Mfg PartNum:
  (121 customer reviews)
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Ultra Light. Great Protection.

The compact form of the Synthe MIPS® slips through the air with ease across multiple yaw and head angles, and offers impressive cooling power. Key features include the Roc Loc Air fit system with 2-way fit tuning and Aero Mesh Panels with a dedicated port for securely docking sunglasses as you ride. The Synthe MIPS® also has the Multi-Directional Impact Protection System, which we believe can redirect energy and provide more protection in certain impacts.

The Synthe MIPS has the most efficient aerodynamic profile of any of Giro's previous road helmets, yet it has greater cooling power than their lightest weight Aeon. In fact, it's almost as cool as a bare head over 30 minutes according to Giro's test results.

Perfect Fit + Ventilation = Giro Synthe MIPS

This uncompromising 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.

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.

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

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

Certification: Complies with the US CPSC Safety Standard for Bicycle Helmet for Persons Age 5 and Older 

Mfg PartNum: 7066353 

Mfg PartNum: 7066353 

Matte Black - Small

Mfg PartNum: 7066352 

Matte Black - Medium

Mfg PartNum: 7066353 

Matte Black - Large

Mfg PartNum: 7066354 

Matte White/Red - Small

Mfg PartNum: 7086724 

Matte White/Red - Medium

Mfg PartNum: 7086725 

Matte White/Red - Large

Mfg PartNum: 7086726 

Ordered by Most Relevant First
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It's keeping my husband's head safe!
rating
by Becky Lowry
Tucson, AZ

I bought this for my husband as he had cracked his previous helmet in a nasty cycling accident. He's very happy with this helmet, and I feel it is keeping his head from getting injured if he were to have another crash.

Reviewed 3/4/2021
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Best helmet I have owned
rating
by SaaSy Cyclist
Cycling Enthusiast
Portland, OR

This is by far the most comfortable helmet I have ever tried on. I tried on several from other major competitors and none could compare. The cushioning is minimal but provides just what is needed, and the cinching system adjusts nicely to create a supremely comfortable fit, while benefiting from the MIPS technology. I do wish Giro had included extra cushioning strips as they had with previous helmets I have owned.

Reviewed 6/6/2020
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Great Helmet
rating
by Phillip Smith
pennsylvania

Giro Synthe looks and feels great. Helmet fits perfect.

Reviewed 2/9/2021
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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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great quality product
rating
by Anonymous
Cycling Enthusiast

comfortable fitting and lightweight, adjusts as indicated in item description

Reviewed 1/14/2021
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Excellent helmet!
rating
by rgarner
Cycling Enthusiast
Mobile, AL

Purchased a small for my wife. I think the MIPS system makes the fit a little tighter, which is good for her. The red and white color is very nice.

Reviewed 11/6/2020
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Really, really good fit
rating
by Alajandro
Cycling Enthusiast
Boston

Probably the worst that I can say about the Giro Synthe MIPS is that I have to check make sure I am wearing it. Its a great fit and easy to adjust and coupled with its low weight, can forget that I'm wearing it.

Also MIPS adds additional confidence in reducing severity of injury.

Reviewed 10/26/2020
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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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Very nice helmet!
rating
by Anonymous
Chicago

Not an expert on helmets, and not a serous high mileage rider, and fairly new to cycling, but love high quality gear! This helmet seems well made & really lightweight. In the end I decided to try the POC Ventral air spin instead, as I love the looks, European & elegant! It�s just a personal thing, but both seem to be of very high quality! Cheers!

Reviewed 9/9/2020
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So Far, So Good!
rating
by Tom

The fit and feel of the helmet is great. Decent airflow and a spot for my sunglasses. The only minor issue is the front padding. It turns into a sweat pad on hot, long rides and will drip down onto your face. I�ve remedied that by just wearing a cycling cap beneath on hot day�s.

Reviewed 9/7/2020
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Great Helmet
rating
by Anonymous
Chicago suburbs

This is my second Synthe MIPS. Well ventilated, light, comfortable straps and easy adjustment. My one minor complaint is that Giro seems to have used the same mold and just inserted the MIPS so being on the cusp of small and medium, I had to size up to get anything more than a Really thin scullcap underneath. This is now my late fall/winter helmet.

Reviewed 9/10/2020
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Giro Synthe MIPS Helmet
rating
by Jen
Emmett ID
1 of 1 customers found this review helpful.

This is a great helmet. I have an older version as well. My Smith glasses fit perfectly.

Reviewed 4/1/2019
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nice weight
rating
by Anonymous
Cycling Enthusiast
calif

great helmet

Reviewed 10/8/2020
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Good Giro Helmet
rating
by Bruce CO
Cycling Enthusiast
Littleton, CO

This helmet fits well - is easy to adjust the fit - and has good ventilation. Its all that it is advertised to be.

Reviewed 9/21/2020
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Awesome helmet
rating
by Anonymous
LA area SoCal

This is the third Giro Synthe helmet Ive bought and the second with MIPS. The fit is great and it looks great, too.

Reviewed 4/3/2020
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Great Helmet
rating
by Anonymous
Florida

Great helmet. Light weight. Fits snuggly to the head without feeling tight. Easy to adjust.

Reviewed 8/14/2020
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Very lightweight and comfortable
rating
by Sprintri
Cycling Enthusiast
Lake Oswego, OR

For road cycling. Adjustable and well ventilated. A bit pricey

Reviewed 8/1/2020
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Reliable Classic
rating
by CX-Ops
Cycling Enthusiast
Las Vegas, NV

The Synthe has a simple and classic look. Its also very reliable in terms of function and protection. The Synthe comes in different colors and designs. I actually own 20 of them.

Reviewed 7/2/2020
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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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