Giro Synthe

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Full Manufacturer Warranty.


$ 182.95

RRP: 234.97

You save 22.14%: $ 52.02

Minimum online price audited bynetRivals

Other colors available







Giro Synthe


Giro Synthe

Giro Synthe



The Synthe is the pinnacle of road helmet design. It offers impressive cooling power, minimal weight, supreme fit and streamlined aerodynamic efficiency. It is a true synthesis of all features a modern rider wants in a high performance road racing helmet.

The difference is clear in the wind tunnel—our extensive testing reveals that the Synthe is nearly as efficient as the fastest time trial helmets. But the Synthe’s greatest attributes are comfort and ventilation. At it’s heart you’ll find our Roc Loc Air fit system. Micro adjustments allow you to custom tune tension and fore-aft tilt with one hand and a patented design suspends the helmet over the top of the skull, allowing airflow to pass freely over your head. Cooling power is further boosted by elaborate internal channeling and a series of massive vents; the Synthe sets a new bar for ventilation.


- Featherweight Webbing with Slimline Buckle
- Roll Cage internal reiforcement


- Weight: 234g
- Construction: In-Mold polycarbonate shell with EPS liner, Thermoformed SL reinforcement
- Fit System: Roc Loc Air
- Ventilation: 26 Wind Tunnel vents with Internal channeling


Roc Loc Air Fit System:
This revolutionary fit system adds a new dimension to helmet performance by enhancing cooling, as well as fit comfort and stability. Using a patented design that suspends the helmet just slightly off the top of the skull, Roc Loc Air allows cool airflow to pass directly over your head, further enhancing the performance of vents and internal channeling that exhaust heat out of the helmet. Fit and feel adjustments mimic the Roc Loc 5, allowing you to easily custom tune fit tension and fore-aft tilt of the helmet in seconds using a single hand.

Giro helmets are developed utilizing our proprietary Wind Tunnel ventilation system. This elaborate design combines active vents in the helmet’s shell with exhaust channels inside the helmet that thrust fresh, cool air over and around the rider’s head while forcing heat and stale air out. It’s the most effective cooling system available, and a difference you can feel every time you ride.

X-Static padding contains a fiber made with layers of pure silver that is permanently woven into the fabric. Silver has natural anti-microbial performance that helps to reduce odor and regulate heat, so your helmet stays fresh and comfortable, naturally.

Order now your Giro Synthe and receive it at home in a few days. In addition, you can choose different sizes and colors for Giro Synthe, this way it adapts to your needs. At this moment Giro Synthe is in stock and the price is 182.95 $. With our variety of Helmets road-mtb articles, you can find everything you need at one place.


EAN retail barcodes:
768686676840 (55-59 cm)
768686676857 (59-63 cm)

Size chart. Helmets

Use the chart below to determine your size. If you´re on the borderline between two sizes, order the smaller size for a tighter fit or the larger size for a looser fit. If your measurements for bust and waist correspond to two different suggested sizes, order the size indicated by your bust measurement.

  • cm
  • inch
  • Kg
  • Pounds
Size Head circumference (cm)(inch)

51 - 55

19.89 - 21.45


55 - 59

21.45 - 23.01


59 - 63

23.01 - 24.57

One Size

54 - 61

21.06 - 23.79

head.jpg head_circum_eng.png
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Giro Synthe

$ 182.95

RRP: 234.97

You save 22.14%: $ 52.02

Size Size chart

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