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Giro Helios Spherical Helmet

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Suitable forEveryone

Giro was founded in 1985 by Jim Gentes, with obsession for design and answering unmet needs. That obsession led him to start making his own products and ultimately resulted in a company committed to serving the rider through personal expression and advanced performance.

Giro Helios Spherical Helmet
Giro Helios Spherical Helmet Giro Helios Spherical Helmet Giro Helios Spherical Helmet Giro Helios Spherical Helmet Giro Helios Spherical Helmet Giro Helios Spherical Helmet Giro Helios Spherical Helmet

Advanced performance for the adventurous

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.


Spherical Technology

Spherical Technology's Ball-and-Socket design, powered by Mips®, helps redirect impact forces away from the brain by allowing the outer liner to rotate around the inner liner during a crash. It also eliminates contact with hard plastic or slip-planes against the skin.

Progressive Layering™

Helmets with Progressive Layering feature a dual-density liner designed to address high and low-speed impacts, for more comprehensive energy management.

Mips® Brain Protection System

All Giro helmets are designed to reduce as much energy as possible while meeting and exceeding stringent safety standards. The goal of Giro's Mips-equipped helmets is to reduce rotational forces. Giro believes that helmets equipped with this technology can reduce the amount of rotational force that may be transferred to rider's brain in certain impacts.

Wind Tunnel Internal Channeling

Combined with the massive vents, internal channeling forces air to flow over the scalp, providing remarkable cooling power.

Roc Loc® 5 Air Fit System

This revolutionary fit system adds a new dimension to helmet performance by enhancing cooling, as well as fit comfort and stability. Using a patented design that suspends the helmet just slightly off the top of the skull, Roc Loc® 5 Air allows cool airflow to pass directly over your head, further enhancing the performance of vents and internal channeling that exhaust heat out of the helmet. Fit and feel adjustments mimic the Roc Loc 5, allowing you to easily custom tune fit tension and fore-aft tilt of the helmet in seconds using a single hand.

Ionic+® Padding

Pure silver is the secret ingredient that gives IONIC+® the power to provide natural, permanent odor protection to help keep your helmet feeling fresh.


Impact Management:

  • Spherical Technology, Powered By Mips®
  • Construction:

  • Independent, In-Mold Liners With Spherical Ball-and-socket Design
  • Polycarbonate Shell
  • Hardbody™ Lower Shell
  • Ventilation:

  • 15 Wind Tunnel Vents With Internal Channeling
  • Fit System:

  • Roc Loc® 5 Air
  • Weight:

  • 270g (Size Medium CPSC, CE)
  • Certification:

  • Complies with the US CPSC safety standard for bicycle helmet for persons age 5 and older
  • E.U.: CE EN1078
  • Highlights:

  • Nanobead EPS Foam
  • Coolfit Antimicrobial Padding
  • Slimline Webbing
  • Four-Piece Shell With Lower Hardbody
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