In an effort to make mountain biking and cycling safer, Giro announced their Manifest Helmet that offers Spherical Safety Technology. The Giro Manifest helmet is geared towards mountain bikers, but would be ideal for gravel cyclist looking for a helmet with a visor option.

Giro Sport Design, a cycling design leader, today announced the all-new, Manifest Spherical helmet featuring the proprietary ball-and-socket design of Spherical Technology to help redirect impact forces, combined with the MIPS® Brain Protection System and an EPS liner with progressive layering to better manage high- and low-speed impacts. It also offers best-in-class ventilation that rivals Giro’s best road helmets, with plush padding for comfort.
The Giro Manifest Spherical is available immediately from authorized Giro retailers and giro.com for $260 US MSRP.
Giro has a long legacy of innovation off-road. The first-ever fit system, the Roc Loc, was invented by Giro in 1994 and in 2002 the Xen helmet was the first model to acknowledge that trail riders have different needs than XC racers or freeriders.
Giro Marketing Director, Dain Zaffke
The Giro Manifest helmet offers Spherical Technology
At the heart of the Manifest’s features is Spherical Technology, which utilizes a ball-and-socket design powered by MIPS® to redirect impact forces. Developed in Giro+Bell’s world-class test lab, and in partnership with MIPS, Spherical Technology allows the outer liner to rotate around the inner liner during a crash and eliminates skin contact with a hard plastic slip-plane.
Spherical Technology also enables Progressive Layering, with dual-density foam liners designed to address high- and low-speed impacts for more comprehensive energy management. The AURA reinforcing arch bolsters structural integrity while allowing air to flow freely into a series of Wind Tunnel vents and internal channeling. Comfort and sweat absorption are enhanced by quick-drying antimicrobial XT2 padding. The cooling power is obvious and has been quantified by test results using the Dome’s Therminator heat-sensing test fixture:
The Giro Manifest helmet runs significantly cooler than other trail helmets and even rivals Giro’s class-leading Aether road helmet. Fit and positioning adjustments are achieved with a redesigned Roc Loc Trail Air fit system that offers dynamic strength and UV-resistance while improving ventilation and comfort.