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Giro Helios Spherical Helmet MAT-LT-MINERAL SM-51-55CM

  • Based on 268 reviews
Condition: New
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$189.00 Why this price?
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Availability: Only 2 left in stock, order soon!
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Arrives Saturday, Jul 4
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Color: Matte Light Mineral


Size: Small


Features

  • COMPREHENSIVE PERFORMANCE AND PROTECTION: Engineered in Giros helmet test lab.
  • SPHERICAL TECHNOLOGY: Ball-and-Socket Design, powered by MIPS, redirects impact forces without compromising comfort, ventilation, weight or style.
  • MIPS PROTECTION SYSTEM: the market-leading protection system designed to address rotational motion, for an added measure of protection in certain impacts.
  • PROGRESSIVE LAYERING: Dual-density EPS foam liner designed to address high and low-speed impacts for more comprehensive energy management.
  • EXCEPTIONAL AIRFLOW, LIGHTWEIGHT, AND DURABLE: 15 Wind Tunnel vents with internal channeling allow air to flow through the helmet to enhance cooling power. construction eliminates excess weight and permanently fuses tough polycarbonate outer shell to the interior liner.

Description

Giro's new Helios Spherical helmet serves as Giro's premium adventure helmet. With Giro mentioning the Helio's primary safety feature in its name, it's clear that the focus of the cycling helmet's evolution remains rider comfort and protection. For those unfamiliar, Spherical technology is a brainchild of Bell + Giro Dome in partnership with MIPS. The unique ball-and-socket design is, thankfully, easy to conceptualize. The Helios Spherical is a progressive layering system with an inner liner and outer shell that can rotate around each other upon impact. All you have to do to visualize this is make a fist, then twist your other hand over the fist. The result is a more comprehensive platform for rider protection. Giro doesn't stop there, however, as the Helios Spherical is aimed squarely at the adventure rider with 15 wind tunnel vents and channels running deep into the bottom of the helmet to keep the head cool during epic, off-road riding.

Brand: Giro


Size: Small


Outer Material: Polycarbonate (PC)


Item dimensions L x W x H: 10 x 13 x 8 inches


Inner Material: Expanded Polystyrene


Brand Name: Giro


UPC: 196178177504


Manufacturer Part Number: 7159036


Model Number: Giro


Unit Count: 1.0 Count


Size: Small


Item Dimensions: 10 x 13 x 8 inches


Item Weight: 270 Grams


Outer Material: Polycarbonate (PC)


Inner Material: Expanded Polystyrene


Frequently asked questions

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

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


  • Nice but needed different size
On first examination, the helmet is super light and well-made. Unfortunately too small so can’t review it fully. Bought to replace Giro Verce with universal fit 52-57. If I could find a medium for a reasonable price I’d try it. Helmets are absurdly $$$.
Reviewed in the United States on January 8, 2026 by JST

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