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Giro Syntax MIPS Adult Road Cycling Helmet

  • Based on 1,704 reviews
Condition: New
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Fulfilled by Green Room Extreme Outdoors

Arrives Tuesday, Oct 3
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Color: Matte White/Silver

Size: Large (59-63 cm)


  • MARKET-LEADING PROTECTION: Engineered in Giros category-leading helmet test lab
  • MIPS: Utilizes the Multi-Directional Impact Protection System to redirect energy in a crash
  • VENTILATION: 25 wind tunnel vents with internal channeling
  • COMFORT: Easily adjust vertical position and tension with the Roc Loc 5 fit system
  • LIGHTWEIGHT: In-moIding construction


THE SYNTAX MIPS COMBINES A TOUCH OF EUROPEAN FLAIR WITH SLIGHTLY DEEPER COVERAGE AND HIGH-PERFORMANCE FEATURES—ALL TUCKED INTO A VERY SLIM DESIGN. The outer shell is molded from a tough polycarbonate that's fused permanently to the EPS foam liner using our In-MoId construction process to enhance durability and ventilation without excess bulk. And the fit is luxurious and secure, thanks to our highly-adjustable Roc Loc 5 Air MIPS system that allows you to customize fit/feel for great stability and long-range comfort. Another benefit is integrated MIPS which can provide an added measure of protection from rotational forces in the event of an angled impact.

Brand: Giro

Color: Matte White/Silver

Age Range (Description): Adult

Size: Large (59-63 cm)

Special Feature: Lightweight

Brand: ‎Giro

Color: ‎Matte White/Silver

Age Range (Description): ‎Adult

Size: ‎Large (59-63 cm)

Special Feature: ‎Lightweight

Model Name: ‎Giro Syntax MIPS

Outer Material: ‎Polycarbonate (PC)

Vehicle Service Type: ‎Bicycle

Recommended Uses For Product: ‎Cycling

Item Dimensions LxWxH: ‎12 x 10 x 6 inches

Inner Material: ‎Expanded Polystyrene

Item Weight: ‎0.6 Pounds

Item Package Dimensions L x W x H: ‎14.03 x 9.69 x 7.6 inches

Package Weight: ‎0.81 Kilograms

Brand Name: ‎Giro

Warranty Description: ‎Any Giro helmet determined by Giro to be defective in materials or workmanship within one (1) year from the date of original purchase will be repaired or replaced, at Giro’s option, free of charge when received at the factory freight prepaid, together with proof of purchase.

Material: ‎Polycarbonate

Suggested Users: ‎Unisex

Number of Items: ‎1

Manufacturer: ‎Giro

Part Number: ‎7099686

Model Year: ‎2021

Sport Type: ‎Cycling

Date First Available: August 29, 2018

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Oct 3

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

  • Excellent
Color: Matte Black Underground Size: Large (59-63 cm)
Lightweight, comfortable , adjustable fit.
Reviewed in the United States 🇺🇸 on May 15, 2023 by Michael L. Mauldin

  • Fits my wide head comfortably
Color: Matte Black/Bright Red Size: Large (59-63 cm)
Liked I can remove the visor. Great for me an old guy starting to ride bicycle
Reviewed in the United States 🇺🇸 on May 3, 2023 by Joseph Daniels

  • Comfortable, well-fitting helmet
Color: Matte White/Silver Size: Small (51-55 cm)
I have owned Giro helmets for years and this new one continues to please. I wondered if the addition of MIPS would change the feel or fit but it doesn't for me. I recommend this helmet.
Reviewed in the United States 🇺🇸 on March 3, 2023 by Janet Vassar

  • Actually fits my head
Color: Matte Black Size: Large (59-63 cm)
I dont like how it looks but it fits well. Not sure what headshape I have but I tried the Giro Synthe helmet in M and L size and the POC Omne Air SPIN helmet in M and L size. ALL of them were too small. When putting them on I could feel slight pressure near my temples. Once on, it wasnt too uncomfortable but I had a feeling after a while it would be more noticeable. This Giro Syntax is size L fit my head like a glove. It fit around my head instead of just on top and it felt very secure. It could definitely be lighter... the Synthe was noticeably lighter. Again, I dont like how it looks, it gives your head that mushroom look. I only plan to use this for specific events as when I ride alone I'd prefer not to wear one. It fits and I dont feel like trying more helmets. ... show more
Reviewed in the United States 🇺🇸 on July 19, 2022 by dp

  • Better than my SAGA
Color: Matte White/Silver Size: Medium (55-59 cm)
Apparently, there is a difference between an Adult Medium and a Women's Medium - online shopping learning curve? My first GIRO was a SAGA in a women's medium. While it fit, it always felt like it was sitting on top of my head (lol, where it's supposed to go!) what I mean is that it felt like it wasn't deep enough — like I was a character in Super Mario Brothers and had a mushroom cap on my head. The Syntax is deeper, it sits lower on my head, and is a much more comfortable fit. Plus the vent holes are such that I can place my sunglass on my helmet and not worry about them falling off. I'm pretty sure all the helmets are going to save my life, so comfort and vanity are the next most important things! ... show more
Reviewed in the United States 🇺🇸 on October 1, 2022 by S. Worden

  • Nice helmet, but not for me
Color: Matte White/Silver Size: X-Large (61-65 cm)
I have a long, oval head, so I got the XL size. Fit perfectly, but the plastic MIPS strap along the sides rested where my ears meet my head. Otherwise would have been perfect. p.s. - my wife has a medium Giro Aether model and the MIPS straps are inside the sides and far above her ears.
Reviewed in the United States 🇺🇸 on September 14, 2022 by rpm

  • Finally one that fits
Color: Matte Black/Bright Red Size: X-Large (61-65 cm)
I have a fat head and have had an excruciatingly hard time finding a helmet that fits appropriately. My Troy Lee Design MTB helmet fits but does not work for my gravel bike due to it rotating forward into my face from the very low back. Took a chance on ordering this helmet and have been very happy thus far. It is comfortable and sits on my head without feeling like a donut. The straps are also plenty long enough, which was another issue I was experiencing. The ventilation does very well and the brow of the helmet does not interfere with the sunglasses I wear while riding. Would purchase again if I needed to replace the helmet. ... show more
Reviewed in the United States 🇺🇸 on August 2, 2022 by M.S.

  • Good Bike Bang for a Buck
Color: Matte White/Silver Size: Large (59-63 cm)
This Giro Syntax MIPS helmet replaced a tired Specialized S-Works helmet. (I have a fitted-cap-sized-head of 7-3/4, which the Giro L (59-63CM) did the job nicely.) Good helmets are not cheap and the GIRO is serving my helmet needs quite well at a reasonable price. The fit of the Giro helmet is much better (for me) than the S-Works, which tended to ride high and fit high on the head. The Giro fits lower and encases the head with a more snug and secure fit, in my opinion. My only little negative is the chin snap, which requires some patient attention to clasp & unclasp - and that is "no biggie". A thumbs-up to Giro for providing a well-made and market-friendly bike helmet solution. (( I ride frequently (5 Xs weekly) and have ridden 17,675 miles in the last 10 years or 71% of the earth's circumference - and still going at age 76) ... show more
Reviewed in the United States 🇺🇸 on April 2, 2022 by

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