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Item # GIR0405


Lots of tech, not a lot of green.

To us, the hallmark of a Giro design are its three central vents. And, not coincidentally, you'll find this feature on the Giro Saros Helmet. It was originally part of the Prolight design, but nearly every subsequent helmet has revolved around the three prominent central holes. To us, this trident conveys stability and balance. And while Giro builds on older designs, it never adds baroque touches, instead opting for little practical flourishes. So, in this tradition, the Saros helmet hearkens to the long-gone days of the Eclipse, while moving forward into the contemporary.

With the Saros, you receive trickle-down technology like the Roc Loc 5 --Giro's easiest to use and most comfortable retention system to date. Also used in Giro's top-of-the-line Aeon helmet, Roc Loc 5 adds more adjustability, while removing 40% of the weight from its prior iteration. So, what's different? For starters, the indexed Micro Dial on the back lets you adjust the tension to perfection with a two fingered twist. It's really that simple. Additionally, the Three Position Bracket allows 15mm of vertical adjustment in the retention basket -- enough to comfortably fit any head shape. But, what's comfort without ease of use? Giro facilitates quick donning of your casque with clever strap management. The retention basket has strap holders to ensure that they'll be right where you want them by the time the helmet falls into place.

For protection (that is what a helmet does, right?), the Saros features an in-molded polycarbonate shell that, when combined with the expanded polystyrene liner, creates a structural skeleton that's abrasion-resistant for any high speed slides across the pavement. Giro has also ensured that it aids in the absorption of any direct high-speed impacts. And going a step even further, the Saros also has Giro's Roll Cage technology. Don't worry about looking for it -- you'll never see it. It's a net of tough nylon that's been molded into the foam liner of the helmet. Basically, this 'web' keeps the helmet from breaking apart like a rotten ice chest when you have a bad crash. The Saros has 23 Wind Tunnel vents to channel airflow directly to your head in order to keep you as cool as possible, regardless of high temperatures.

The Giro Saros Helmet is available in the sizes Small Small (51-55cm), Medium (55-59cm), and Large (59-63cm) and in the colors Black/red, Black/blue, Matte Black, Matte Black/yellow Livestrong, Matte Titanium, and White/silver.

Tech Specs

[shell] polycarbonate
Adjustable Vents:
Fit Adjustment:
Roc Loc 5
Recommended Use:
road cycling
Manufacturer Warranty:
1 year

Size chart


Adult Cycling Helmets
 SS/MMM/LLXLAdult UniversalWomen's Universal
Head Circumference 20 - 21.75in
(51 - 55cm)
20 - 22.5in
(51 - 57cm)
21.75 - 23.25in
(55 - 59cm)
21.75 - 24in
(55 - 61cm)
23.25 - 24.75in
(59 - 63cm)
24 - 25.55in
(61 - 65cm)
21.25 - 24in
(54 - 61cm)
19.75 - 22.5in
(50 - 57cm)
Head Circumference 20 - 20.75in
(51 - 53cm)
21.25 - 22in
(54 - 56cm)
22.5 - 23.25in
(57 - 59cm)
23.5 - 24.25in
(60 - 62cm)
How to Measure:
For best results, use a tape measure to measure around your head where your hat would fit comfortably.

Reviews & Community

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Giro Saros Helmet

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Here's what others have to say...

4 5

comfortable, excellent bang for the buck

  • Familiarity: I've put it through the wringer

I bought this for my son who felt his helmet wasn't comfortable although I think he was out growing it a bit. Either way he has been riding this helmet the last several months and has not complained once, which is saying a lot since were talking about a 12 year old. He says it feels very comfortable on and doesn't bother him even on his longer rides. And of course I wouldn't put him in anything that wasn't safe, I've owned (and crashed) several Giro helmets and my brain is still in tact.

A helmet you can wear all day

A helmet you can wear all day

size M. probably one of the few cycle tourists who wears a helmet in the 3rd world, but I don't feel too bad doing it.

5 5

Awesome cheaper performance helmet

  • Familiarity: I've put it through the wringer

A helmet that feels solid but still light and breathable like the ionos or prolight. I turned to this after breaking the side straps on an ionos and will probably not go back. Doesn't quite disappear while running or rollerskiing but close ...

Does anyone have the weights specs on...

Does anyone have the weights specs on these? I would be looking at a Medium, but I'm sure other folks would be interested in the full weight spec chart.

Best Answer Responded on

They are listing the medium at 279g. I imagine the S and L will be right in that range as well.

5 5

Second Giro

  • Gender: Male
  • Familiarity: I've put it through the wringer

I've owned another Giro with similar retention and rocloc. Fully impressed, hardly ever notice it on my noggin, looks good, weight barely there. Plenty of ventilation, I have a very large oval head and the giro feels good.

Second Giro
5 5

Highly Recommend This Great Helmet

  • Gender: Male
  • Familiarity: I've used it several times

This helmet fits very comfortably and offers great protection. I was just in an accident with a car yesterday. I was thrown off my bike and the helmet took the impact just like as it was designed. I had no head injuries and I am going to purchase the exact same helmet as a replacement. I would highly recommend this helmet because of its excellent fit and protection.