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Giro

Giro Helios Spherical Bicycle Helmets

  • Based on 267 reviews
Condition: New
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Availability: Only 1 left in stock, order soon!
Fulfilled by Amazon
Arrives Jul 4 – Jul 6
Order within 19 hours and 41 minutes
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Color: Matte Black Fade


Size: Large


Features

  • Spherical Technology, unique Ball & Socket design, powered by MIPS, redirects impact forces.
  • Progressive Layering, dual-density foam liners address highand low-speed impacts.
  • Roc Loc 5 Air Fit System offers on-the-fly fit tension and vertical adjustment for added comfort and stability.
  • 15 vents and deep internal channeling, Full lower hardbody coverage, Reflective decals

Description

The heart of the Helios's extraordinary design and performance is Spherical Technology, which utilizes a ball-and-socket design powered by Mips®, the market-leading brain protection system that can help to reduce rotational forces. Spherical Technology allows the helmet's outer liner to rotate around the inner liner during a crash, and also allows Progressive Layering of the inner and outer liners to provide more comprehensive protection and performance. In addition to advanced head protection, the Helios's 15 Wind Tunnel vents provide exceptional cooling power that's enhanced by our patented Roc Loc 5 Air fit system and plush, antimicrobial XT2 padding for exceptional sweat absorption. It's the ideal match for your road and gravel adventures.

Brand: Giro


Color: Matte Black Fade


Age Range (Description): Adult


Size: Large


Special Feature: Spherical Technology


Brand Name: Giro


Age Range Description: Adult


Model Name: Helios Spherical


UPC: 768686381515


Manufacturer Part Number: 7129136


Model Number: 7129136


Unit Count: 1.0 Count


Included Components: Bike Helmet


Warranty Description: 2 Year Manufacturer


Item Type Name: Bike Helmet


Manufacturer: Giro


Size: Large


Item Dimensions: 10 x 8 x 8 inches


Item Weight: 8 Ounces


Color: Matte Black Fade


Outer Material: Polycarbonate (PC)


Inner Material: Expanded Polystyrene


Recommended Uses For Product: Cycling


Additional Features: Spherical Technology


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jul 4 – Jul 6

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • A sweet, cool, and safe helmet!
Color: Matte Black Fade Size: Large
Finally! A helmet that not only fits my big head, but looks sweet and has an awesome-looking design and very good safety technology and construction. Cost me a bit more than my last helmet, but my head out there do. It’s so very light, has awesome ventilation, and the straps work very well too. Those are other important selling points for me. If you have a pretty big head and can afford the price, BUY this helmet. You won’t be disappointed… unless you’re not wearing it correctly. Then it’s YOUR problem, lol. On a serious note, you can always take your helmet to your local bike shop and ask them to help you fit and adjust your helmet. Don’t settle for a cheap helmet! Shop around and spend money on the only head you have!! Replace your helmet every three (3) years, or after you have an accident, God forbid. It doesn’t matter how minor the accident may have been. If you hit your head, replace the helmet. Please wear your bicycle helmets, people! Don’t be a craniotomy statistic. I worked at a trauma center for many years and we had lots of patients who had to have their skulls opened up to access their brains – all because they wanted to “look cool” and not wear a helmet.🤦🏻♂️ ... show more
Reviewed in the United States on June 9, 2024 by OCD CRCST
    • excellent fit adjustment system with this helmet
Color: Matte Metallic Coal/Dusty Rose Size: Large
Lightweight and excellent adjustment. the adjusting straps internal to the helmet, seems to slide smoothly and offers around the head snugness that my old helmet didnt have. so far so good and time will tell if the helmet maintains good fit. the feel is quite good and offers a little more confidence when riding. i recommend ... show more
Reviewed in the United States on October 10, 2025 by Robbie
    • This helmet is very comfortable
I was not sure if I should get this helmet or the Giro Aries. I could not determine the difference by reading the description. I feared that the helmet might be too small but the helmet and the chin strap has plenty of room. During Covid it was hard to find bike products so I ended up buying a low-end Giro helmet that even though it was a (large) it felt very small and the chin strap was very short. I am happy to report that this helmet fits like most Giro helmets I have worn for over 20 years.It fits perfectly. This helmet is very light and comfortable. Thank you! ... show more
Reviewed in the United States on July 24, 2023 by Charles Foster Kane
    • Very Good Very Safe Bike Helmet Very Good Very Safe Bike Helmet
Color: Matte Black/Red Size: Medium
Review Image by A. White
The Giro Helios Spherical is a very good helmet, lightweight, adjustable, latest safety features (MIPS) for best head protection, and a very comfortable fit (no hair snags) for short or long rides. Pricey but worth it for the extra safety and easy adjustability. Highly recommended.
Reviewed in the United States on September 11, 2021 Reviewed in the United States on September 11, 2021 by A. White
    • Great
Color: Matte Black Fade Size: Medium
Great helmet medium fits my 58cm head just right.
Reviewed in the United States on June 1, 2025 by DP
    • Bike helmet
Bought this as a Christmas present for my daughter. Per the Amazon delivery driver, the box fell apart. I don’t know if the box should include extra padding strips; if there should be, they were missing. It looks like the helmet is not damaged. The helmet seems to have good airflow. I like the look and design. ... show more
Reviewed in the United States on December 20, 2025 by H. Butler
    • Talla correcta
Color: Matte Black Crossing (2022) Size: Small
Buen producto quedo perfecto , hasta ahora muy bien cómodo liviano
Reviewed in the United States on May 5, 2026 by Jorge r
    • Comfort and safety with a sharp design
Color: Matte Black/Red Size: Medium
My size is either a medium or large, depending on the brand as I measure just under 59mm. This Giro Helios Spherical medium fit me very well and the adjustments to get the correct fit are perfect for comfort and safety.
Reviewed in the United States on April 20, 2024 by Jim M

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