Giro Aries Spherical Helmet

The Giro Aries Spherical Helmet sets a new benchmark for lightweight protection and comfort. Weighing only 270 grams (size medium, CE certification), it combines a compact shape with outstanding ventilation and advanced impact management technology. The result is a helmet that feels barely there while still delivering state-of-the-art safety and performance.

At its core is Spherical Technology powered by Mips, a ball-and-socket design that redirects impact forces away from the brain during a crash. Combined with Progressive Layering, dual-density Nanobead EPS foam that manages both high- and low-speed impacts, the Aries delivers comprehensive protection.

Cooling is handled by 24 Wind Tunnel vents, deep internal channeling, and the Aura II Reinforcement Arch, which strengthens the structure while allowing massive airflow. Comfort comes from the Roc Loc 5+ Air fit system, plush IONIC+ antimicrobial padding, and the new DryCore brow pad, which redirects sweat to keep it out of your eyes.

Finished with reflective details, integrated eyewear docking ports, and Giro’s signature production quality, the Aries Spherical is designed for riders who want the best balance of weight, ventilation, and safety. Ranked #1 at Virginia Tech’s helmet safety testing, it delivers proven protection with all-day comfort.

Key Features

• Featherweight Performance: Just 270g (M, CE), slim profile with full lower hardbody coverage
• Spherical Technology with Mips: Ball-and-socket design redirects impact forces for added brain protection
• Progressive Layering: Dual-density Nanobead EPS foam for comprehensive energy management
• Aura II Reinforcement Arch: Strengthens structure while enabling massive vents
• Virginia Tech #1 Ranking: Top-rated for reducing risk of injury