Giro's Manifest has Spherical safety tech

Manifest with advanced MIPS system
Manifest has two energy deflecting structures, joined into one helmet (Image credit: Giro)

Giro’s Manifest helmet brings Spherical safety technology to trail riders.

The American cycling shoe and safety brand has been developing its Spherical system, to complement angular deflection technologies such as MIPS.

Giro’s dual-density EPS foam construction enables the Spherical system to function, using what the brand calls ‘progressive layering’. These different EPS foam densities react to angular impact forces, lessening the effect of awkward and sudden helmet movements on the brain, during a crash.

Practically the Manifest has two EPS mouldings, which are connected, to create a finished helmet structure. 

The Manifest uses an elastomer binding to consolidate these separate structures into one. In the event of a crash, this allows a 10-15mm slip-margin of helmet movement, notably reducing that sudden moment of rotational acceleration, which one is most at risk of when crashing.

By integrating the rotational-slippage technology, Giro’s industrial designers have delivered a much neater interior helmet shell, allowing for improved breathability and comfort.

Beyond the Spherical technology, this new Giro trail riding product also features excellent eyewear cooperation. The helmet’s aft area has a rubber support patch for goggle elastic, preventing that annoying slippage when descending technical terrain at speed.

Trail helmets should have a visor and the Manifest is no different, with its removable visor featuring 15-degree of adjustment.

The Manifest’s temple areas have also been moulded with recesses, to allow your riding eyewear the most comfortable possible fit, without pressuring your face. Rubber grip pads also assist with keeping your optics in place.

With 19 ventilation ports, Giro promises that its Manifest will be a breeze to ride in – even on sweltering summer days. Hygiene issues are managed by XT2 anti-microbial padding. Fit ergonomics are secured by Giro’s convenient Fidlock magnetic chinstrap buckle.

As with all the brand’s helmets, there is a diversity of colourways and designs for the new Manifest, from subtle to daring, a total of seven options for the fashion-conscious.

Giro will be marketing the Manifest at £250, in sizes small, medium and large. Reference weight is 377g, for a size medium.

Lance Branquinho
Freelance writer

Lance Branquinho is a Namibian-born journalist who graduated to mountain biking after injuries curtailed his trail running. He has a weakness for British steel hardtails, especially those which only run a single gear. As well as Bike Perfect, Lance has written for, and Cycling News.