X
Mon-Sat 8am-5pm PT
FREE SHIPPING ON ORDERS OVER $50More info
JOIN OUR EMAIL LIST
Sign Up
Serving cyclists
since 2002
WISH
0
Matte Black
Click Here for Larger Image
Matte Black
Matte Black
Matte Red
Matte Iceberg/Midnight Bars
Matte Black Floral
Matte Black Floral
PLAY VIDEO

Giro Synthe MIPS Helmet

Mfg PartNum:
$239.95
In Stock Now
Ships Free!
Earn $23.99 in VIP credit. Click to Learn More.
2399
POINTS
This color/size is not eligible for VIP points
Please Confirm Color/Size

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 

Helmet Size: 

Helmet Size: 

Helmet Size: 

Primary Color:  

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 

Matte Iceberg/Midnight Bars - Small

Mfg PartNum: 7113071 

Matte Iceberg/Midnight Bars - Medium

Mfg PartNum: 7113072 

Matte Iceberg/Midnight Bars - Large

Mfg PartNum: 7113073 

Matte Black Floral - Small

Mfg PartNum: 7113062 

Matte Black Floral - Medium

Mfg PartNum: 7113063 

Matte Black Floral - Large

Mfg PartNum: 7113064 

Ordered by Most Relevant First
5 stars
4 stars
3 stars
2 stars
1 stars
(101)
(13)
(1)
(0)
(1)
(87%)
(11%)
(1%)
(0%)
(1%)
Reviewed 10/23/2020
by norman
Cycling Enthusiast
Scarsdale, NY
Value Rating
Overall Rating
Excellent helmet

I have used this helmet for years. they have saved my head on three occasions. they saved me from concussions.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 10/17/2020
by Chuckee
Cycling Enthusiast
Kamas, Utah
Value Rating
Overall Rating
Lightweight and very comfortable helmet

Use it for road biking generally every day - 100 to 150 miles weekly. The Giro Synthe MIPS Helmet is probably the most comfortable helmet I have worn in over 35 years of cycling. The adjustable knob in back makes fitting helmet to head extremely easy. The light weight is super - you don't fell like you are even wearing a helmet. There is nothing I don't like about the helmet.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 10/16/2020
by JN
Nor Cal
Overall Rating
Great helmet!

Light, comfortable and good-looking!

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 9/21/2020
by Tedk
Middle of Nowhere
Overall Rating
Love this helmet

I have tried several helmets in the past and this is by far my favorite. The last one I had cracked during a mountain bike accident but my head survived in tact.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 9/23/2020
by OKBiker
Cycling Enthusiast
Claremore, OK
Value Rating
Overall Rating
The one you pray you never have to use!

After a family member was hit by a vehicle, I spent the money on this upgrade. It is what it claims to be. It is slightly larger than my previous helmet, but with the added protection, I deemed worth that cost. Very comfortable, with slots that allow good airflow.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 9/3/2020
by esubi
Florida
Overall Rating
Excellent MIPSHelmet

Bought to replace non-MIPS Kask Protone. Both good helmets just preferred the updated technology. My head measures 22.5 inches and medium fits me perfectly. Light good looking helmet I hope I never have to test it.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 8/28/2020
by Woody
Cycling Enthusiast
San Diego
Value Rating
Overall Rating
Excellent protection system and great airflow in one package

Purchased this helmet for the safety protection system. In addition it has a great fit and the airflow really does keep your head cool. It is more expensive than some other helmets but well worth the price.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 5/7/2020
by Steve F.
Saugus, MA
Overall Rating
1 of 1 customers found this review helpful.
Very light and comfortable.

This helmet Is as good as advertised, the ventilation is superb and you barely notice you're wearing it. Of course it looks really nice as well, great design all around.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 11/18/2018
by HelmetCracker
Cycling Enthusiast
PDX
Value Rating
Overall Rating
4 of 4 customers found this review helpful.
Saved my life- twice

I've had two of these helmets. Bought the first one in 2015 and about a year after purchasing went down on some train tracks it the rain. My head bounced of the track pretty good and the helmet took the brunt of it. Got a replacement through Giro's crash replacement program, which at 40% MSRP. Went over the bars today landed hard, and cracked the second one in two places. Can't say enough about this helmet or Giro in general. I have been wearing them from 25 years as they just fit my head really, really well right out of the box so that's huge as far as protection is concerned. I have probably owned 20 Giro helmets (road and mountain) since 1992 and the Synthe is a great helmet, not noticeable when you wear it, very comfortable. I've wanted to check out POC and Kask but have had such good luck with Giro, there's really no reason for me to switch. Typically I'll average between 3-4000 miles a year on a bike, depending. Going to get another one of these or maybe an Aether.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 5/9/2020
by normanusa
Cycling Enthusiast
Scarsdale, NY
Value Rating
Overall Rating
Helmet

Been using Giro for years very good helmets.. nice lightweight. Saved me from a concussion several times.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 10/17/2018
by Jim McCloskey
Cycling Enthusiast
Northwest New Jersey
Value Rating
Overall Rating
1 of 1 customers found this review helpful.
Well designed high end helmet with good construction, attention to a rider's expectations.

Have been riding for 30 plus years and have had prior Giro helmets. This product is very light, almost to the point where when wearing it is not noticeable, does not move around the perimeter of the head, has little to no interference with the rider's view from side to side. The enclosure is very snug and well fitting, though without any need to overtighten to bind to the rider's head shape. Giro has finally figured out how to create a helmet that even after long rides of over two-plus hours, the unit does not feel heavy, cumbersome, or need continual adjustments - something I have had with other high-end helmets and gear. The straps are not too long and are easy to adjust, the same for the dials to set the inner enclosure.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 8/24/2018
by madoc41850
Cycling Enthusiast
Marco Island, FL
Value Rating
Overall Rating
Love my new helmet.

I ride between100 and 150 miles a week. My helmet is very comfortable and extremely light. The airflow helps keep my head cool. The interior lining is comfortable and the helmet can be easily adjusted. I recommend this helmet wholeheartedly.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 7/9/2020
by Kamas
Cycling Enthusiast
Ventura County, CA
Value Rating
Overall Rating
Light Weight Offering

Had the Cinder. Was looking for something a little lighter. This fits the bill. Less neck ache. Haven't really worked out how my Ray Bans work with the sun glass retainer. The retaining strap seems better as well. Fit is consistent with Giro.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 6/29/2017
by Old Man on Wheels
Cycling Enthusiast
Vancouver, Washington
Value Rating
Overall Rating
5 of 5 customers found this review helpful.
The Giro Synthe really lives up to it's claims

This is the second Synthe I have owned. I tested my first one and competitors for cooling in a makeshift way at the Portland warehouse store. Cooling was a high priority for my selection since I ride hot in the summer. I use a Giro cap under it for cooler weather. On my first ride while going down a fast hill I had descended many times before, I had the distinct sense that my head felt more free in the passing air. My speedometer confirmed a small but noticeable gain. The other reason I chose this helmet was the very comfortable fit. The best I found for me.

So why am I on my second helmet in two years? It was the other reason for selecting the Synthe that I simply took for granted. I crashed at 18-20 mph. It seemed like a perfect 5 point landing and had the bloody scrapes on my knees, elbow, hip and shoulder to prove it. I thought I might have glanced my head, but the helmet seemed to have only minor cosmetic damage. I wore the helmet on the next ride and laid it on the table at the break. One of my fellow riders noticed that the helmet was now split at the back. It likely saved me from a concussion or worse, and I did not even know it. I am sold on this helmet!

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 6/21/2020
by BDK
Clovis, CA
Overall Rating
A bit pricey but a great helmet.

i picked this helmet because I like this MIPPS system the best and because It has better cooling than most.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 8/29/2020
by Steve
Daily Commuter
Value Rating
Overall Rating
A great comfortable helmet!

I bought this a few months ago and thoroughly love it. It is super comfortable, easy to clean after a long ride, and stylish as well!

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 6/18/2020
by BDK
Clovis, CA
Overall Rating
1 of 1 customers found this review helpful.
A bit pricey but a great helmet.

i picked this helmet because I like this MIPPS system the best and because It has better cooling than most.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 6/19/2020
by BDK
Clovis, CA
Overall Rating
A bit pricey but a great helmet.

i picked this helmet because I like this MIPPS system the best and because It has better cooling than most.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 11/20/2019
by Mike Ford
Cycling Enthusiast
Longview, Texas
Value Rating
Overall Rating
SAFE Helmet

I am a 72 year old road and trail rider and have been riding 31 years. After using several helmets over the years and noticing many improvements I purchased a Giro Synthe. On the second ride I had a road accident where I hit my shoulder and then my head. The shoulder pain was excruciating but my head did not hurt and it was later in the day when I found two big dents in the temple area of the helmet. Without the Synthe I do not know how bad the injuries would have been. Thanks to Giro for making SAFE products.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 5/11/2020
by Jim
Louisiana
Overall Rating
1 of 1 customers found this review helpful.
Top notch helmet

Comfortable fit, great airflow, light weight. I live in Louisiana where superior ventilation characteristics are a must in the heat and humidity. This helmet has what it takes.

Was this review useful to you? Yes/No
Thank you for your feedback.
See more reviews

Articles will open in new tab.

A guide to selecting the proper bike helmet.

We are committed to delivering outstanding value and service to our customers, every day.
Try us today to see why so many of our customers come back again and again.

*Orders received before 3:00PM Pacific time are shipped the same day (Mon-Sat). Orders over $50 are shipped free (USA only, excluding AK and HI). Some exceptions apply. See Shipping for details. 05