Giro Ionos helmet review

Top-end lid

Our rating 
3.8 out of 5 star rating 3.8
£159.99 RRP
Giro Ionos helmet

Our review

Superb cooling power and great fit, but not light on your head or your wallet
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This lid tops out the Giro range and the company clearly value comfort above all else – it’s where the Ionos excels. It’s no featherweight, coming in at more than 300g when many high-end helmets are about 250g, but this isn’t noticeable.

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What is noticeable is that the Ionos now features the Roc Loc 5 fitting system, which means you get an extremely convenient dial adjustment at the back and can also tweak where the harness sits on the back of your head.

Full-depth temple and scalp coverage makes for a protected and universally comfortable fit. By moulding the body around a composite framework, Giro can use extended forehead-to-crown and temple vents without any safety or structural compromises.

Massive exhaust vents under the rear spoiler create a Dyson-like through-draft for a dramatic cooling effect. In fact, it’s so cold in wintery conditions that Giro have made a special protective skull cap insert you can fit instead of the standard pads.

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The chin straps and internal padding are well placed and the latter is woven with silver to kill bacteria – a welcome addition if it works. Also available in a Lance Armstrong edition, there should be plenty of riders willing to meet the tall asking price.

Product Specifications

Product

Name Ionos (10)
Brand Giro

Sizes Available L M S
Available Colours Various
Weight (g) 320
No of Vents 21