What Our Gearhead Experts Are Saying: "I reach for this helmet when speed actually matters. It feels fast the moment you roll, stays cooler than most aero lids I've worn, and the Spherical Mips setup gives confidence without adding bulk on long, hard efforts." When we're chasing watts, seconds, and clean lines through the wind, the Eclipse Pro Spherical Helmet delivers speed without compromise. Born in Giro's lab and refined through CFD and wind tunnel testing, this helmet blends true aero gains with real-world comfort, making it feel just as good deep into long rides as it does on all-out efforts. Spherical Technology powered by Mips helps manage rotational forces in certain impacts while allowing the helmet to move naturally around the head. Fifteen carefully optimized vents strike a rare balance between aerodynamic efficiency and cooling, keeping airflow moving when the pace stays high. At just 280 grams in size medium, the Eclipse Pro disappears on the head, letting us focus entirely on staying fast and staying out front.