Giro: EXPECTATIONS ECLIPSED The Eclipse™ Spherical is a standout aero road helmet that brings our best technologies together in a light, compact form that’s ideal for road and gravel racing.The sleek outer shell actively streamlines airflow to reduce drag across multiple wind angles, while 14 Wind Tunnel™ vents pull air through the helmet to provide incredible cooling power that rivals our most aggressively vented road helmets.Inside, the ball-and-socket design of Spherical Technology™ is powered by the Mips® brain protection system, which allows the helmet’s outer EPS foam liner to rotate around the inner foam liner during a crash to help redirect impact forces away from the brain.Progressive Layering of both the inner and outer liners help to offer more comprehensive protection, too.The patented Roc Loc® 5 Air system enhances stability and fit, and plush antimicrobial Ionic+™ padding helps absorb sweat and moisture while providing durable anti-microbial performance. SPECSSpherical Technology™Progressive LayeringNanobead EPS foamIonic+™ anti-microbial paddingReflective decalsCONSTRUCTIONIn-Mold polycarbonate shell with EPS linerFull lower hardbody coverageVENTILATION14 Wind Tunnel™ vents and deep internal channelingSUPER FIT™ SIZESS 20”–21.75” / 51–55cmM 21.75”–23.25” / 55–59cmL 23.25”–24.75” / 59–63cmCERTIFICATIONComplies with the US CPSC Safety Standard for Bicycle Helmet for Persons Age 5 and Older.