The Giro Men's Aries Spherical MIPS Road Bike Helmet is for riders who want top-of-the-line technology that will give you the confidence and comfort you want. This helmet features a lightweight build at 275 g in a medium size, 24 breathable Wind Tunnel vents, and deep internal channeling giving you excellent ventilation. It features Spherical Technology with a ball-and-socket design powered by MIPS giving you reliable protection and transferring energy away from the brain. The interior includes Nanobead EPF foam to manage energy, along with plush Ionic+ antimicrobial padding for constant comfort. The Roc Loc 5+ Air fit system is available to maintain a custom fit, as well as a durable AURA Reinforcement Arch for the best structural integrity. The Giro Men's Aries Spherical MIPS Bike Helmet delivers the quality and protection you want for all your rides! | Giro Aries Spherical MIPS Road Bike Helmet