Giro Eclipse Spherical

Product Overview

The Giro Eclipse Spherical is a high-performance road helmet engineered for cyclists who demand speed, safety, and comfort in equal measure. Developed in Giro’s advanced helmet test lab, this helmet brings together cutting-edge technologies to deliver exceptional aerodynamic efficiency, superior impact protection, and all-day ventilation. Whether you’re tackling time trials, dominating gravel routes, or pushing through long-distance training rides, the Eclipse Spherical combines race-ready performance with modern safety innovations. Its sleek profile and intelligent design make it a top choice for serious riders seeking both competitive advantage and peace of mind on every turn and climb.

Key Features

• Spherical Technology: At the core of the Eclipse Spherical is a ball-and-socket design powered by the Mips® brain protection system. This innovation allows the outer EPS foam liner to rotate slightly around the inner liner during angled impacts, effectively redirecting rotational forces away from the brain. Crucially, this enhanced protection doesn’t come at the expense of comfort, weight, or airflow—making it ideal for fast-paced riding.
• MIPS Protection System: Integrated into the helmet’s structure, the Mips (Multi-directional Impact Protection System) addresses one of the most common types of head injuries—rotational motion during crashes. By providing an additional layer of defense against twisting forces, Mips significantly improves safety without compromising the helmet’s lightweight or aerodynamic qualities.
• Progressive Layering: The helmet features dual-density EPS foam liners on both the inside and outside. This Progressive Layering approach ensures more effective energy absorption across a broad range of impact speeds, offering comprehensive protection whether you’re navigating high-speed descents or low-speed falls.
• 14 Wind Tunnel Vents: Strategically positioned vents are engineered using data from wind tunnel testing to maximize airflow. Combined with internal channeling, these vents pull cool air through the helmet and push warm air out, delivering cooling performance that rivals some of Giro’s most aggressively ventilated models—even at high speeds.
• In-Mold Construction: A tough polycarbonate shell is permanently fused to the interior EPS foam liner. This process reduces overall weight while increasing structural durability and rigidity, ensuring the helmet remains lightweight and resilient under repeated use and impact.
• Roc Loc® 5 Air Fit System: This dial-based fit system offers precise adjustment for both vertical height and lateral position, providing a secure, custom seal that stays stable during climbs, sprints, and technical sections. The Roc Loc® 5 Air ensures the helmet adapts seamlessly to your head shape and riding conditions.
• Ionic+ Antimicrobial Padding: Plush, moisture-wicking padding treated with antimicrobial properties helps keep sweat at bay while resisting odor-causing bacteria. This material efficiently manages moisture, maintaining rider comfort over extended periods without the buildup of unpleasant smells.

Technical Specifications

• Construction: In-mold polycarbonate shell with dual-density EPS foam liners (both inner and outer)
• Safety Certification: Engineered in Giro’s helmet test lab; complies with relevant safety standards for adult helmets
• Ventilation: 14 Wind Tunnel vents with optimized internal airflow channels
• Fit System: Roc Loc® 5 Air with adjustable vertical height and lateral positioning
• Padding: Ionic+ antimicrobial, moisture-wicking fabric
• Weight: Lightweight design optimized for performance (exact grams not specified in source)
• Sizes Available: Standard adult sizing (specific range not detailed in source material)

Benefits & Use Cases

The Giro Eclipse Spherical is purpose-built for riders who refuse to compromise between aerodynamics and protection. Its streamlined shape actively reduces drag across multiple wind angles, making it especially effective during time trials, criterium racing, and high-intensity group rides. Despite its aggressive aerodynamics, the helmet doesn’t sacrifice cooling—thanks to 14 strategically placed vents and internal airflow management that keeps temperatures down even during prolonged efforts in hot conditions.

Beyond speed and ventilation, safety is paramount. The integration of Mips technology and Spherical Design means the helmet performs exceptionally well in real-world crash scenarios involving rotational forces. Whether you’re clipped at a busy intersection or navigating loose gravel on a remote trail, the helmet’s layered construction and smart engineering help manage impact energy more effectively.

The Roc Loc® 5 Air fit system ensures a secure, personalized feel across various terrain types—from smooth asphalt to rugged gravel paths. Riders with different head shapes can fine-tune the fit for maximum stability, knowing the helmet will stay put no matter how hard they push. Meanwhile, the Ionic+ padding enhances comfort by wicking moisture and resisting odor, reducing distractions during long training days or multi-hour events.

This helmet is ideal for competitive cyclists, endurance riders, and gravel enthusiasts who value performance without sacrificing safety or comfort. It’s equally suited for weekend warriors and professional racers looking for a trusted, high-tech solution that delivers on every front.

Important Notes

The Giro Eclipse Spherical is designed for adult use only. Like all helmets, it should be replaced after any significant impact—regardless of visible damage—to ensure continued protection. Proper fit is essential for optimal performance and safety; always adjust using the Roc Loc® 5 Air system according to the manufacturer’s guidelines. The package includes one helmet; no additional accessories such as replacement pads or fit kits are included unless specified separately. To maintain hygiene and longevity, hand wash the Ionic+ padding with mild soap as needed. Avoid machine washing or exposure to harsh chemicals that may degrade the antimicrobial treatment or padding structure.