Eclipse Spherical Helmet Speed and Safety in One Sleek Design The Eclipse Spherical is Giros most advanced, stylish, and lightweight aerodynamic road helmet, offering the perfect blend of speed, comfort, and protection. Featuring Spherical Technology powered by Mips , this helmet provides an additional layer of brain protection, while its aerodynamic design ensures superior performance on both road and gravel. Ride faster, cooler, and more confidently with the Eclipse Spherical. Key Features: Spherical Technology powered by Mips : The ball-and-socket design allows the helmets outer liner to rotate around the inner liner during a crash, reducing impact forces on the brain. Progressive Layering : Inner and outer foam liners offer enhanced impact protection. Aerodynamic Shell : The sleek outer shell reduces drag across multiple wind angles, making it the fastest road helmet Giro has ever created. 14 Wind Tunnel Vents : Provides exceptional cooling power, pulling air through the helmet for a cooling experience that rivals the most vented road helmets. Roc Loc 5 Air Fit System : Ensures a stable, customized fit for maximum comfort. Ionic+ Anti-Microbial Padding : Absorbs sweat and moisture while providing durable anti-microbial performance. Nanobead EPS Foam : Offers high impact energy management in a compact form. Performance Gains: 14 Seconds Faster : Over 100 miles at 25mph compared to the closest aero road helmet competitor. 1 Minute Faster : Than the previous fastest Giro helmet, the Vanquish. Cooling Efficiency : Rivals the Aether Spherical, offering 89.25% cooling efficiency compared to the Aether's 89.75%. Specifications: Reflectivity : Reflective decals for enhanced visibility. Circumference : 51-55 cm. Construction : In-Mold polycarbonate shell with EPS liner, full lower Hardbody coverage. Ventilation : 14 Wind Tunnel vents with deep internal channeling. Fit System : Roc Loc 5 Air. Weight : 270g (Size Medium CPSC, CE). Certification : Complies with the US CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older. Performance Comparison : Aether Cooling Efficiency : 89.75% Eclipse Cooling Efficiency : 89.25% Helios Cooling Efficiency : 87.68% Vanquish Cooling Efficiency : 85.13% The Eclipse Spherical is not only Giros fastest helmet but also one of its coolest, ensuring that you stay comfortable even on the hottest rides. Its combination of cutting-edge aerodynamics, enhanced cooling, and superior protection makes it the ultimate road helmet for serious cyclists.