Arai Signet-X Italy Flag Helmet
Features VAS latch captures and securely holds the shield closed to help prevent unexpected opening Variable Axis System (VAS) shield mechanism was developed to enhance the shape of the shell... Read More
Features
- VAS latch captures and securely holds the shield closed to help prevent unexpected opening
- Variable Axis System (VAS) shield mechanism was developed to enhance the shape of the shell
- In addition to the de-mist function, the larger latch allows for intuitive and seamless shield operation
- Features long oval shape, created by increasing the space of the EPS liner front to back and decreasing the space side-to-side, designed for riders with a narrow head and a more pronounced forehead
- Peripherally Belted - Super Complex Laminate Construction (PB-SCLC) shell design combines multiple materials and techniques that deliver both performance and affordability
- VAS shield system lowers the pivot point by an average of 24 mm, making the shell surface area in the critical temple area much smoother and better able to reduce impact energy getting into the helmet
- Odor resistant liner material resists build-up of bacteria and allows helmet to stay fresher for longer
- Features QVF three-position intake and QVR exhaust ducts for excellent air intake and exhaust performance when riding—even when the front shutter is closed on the top duct, a side vent still serves as an exhaust vent
- Pinlock® 120 lens included
- Features water repellent, removable ES chin cover, enhancing the egg shape of the helmet while increasing exhaust from the mouth area
- FCS® Cheek Pads — The contoured shape - combined with multiple layers of varying foam densities supported by a foam “spring” - cradles the face while helping to block wind noise
- Comes with VAS-Max Vision (MV) shield that accepts the VAS-MV Pinlock® lens
How to measure
Measure the circumference of your head in cm across the forehead, above the eyes and ears and over the small bump at the back of the head — read the size where the tape joins. Focus on head size (crown fit) first, then fine-tune with cheek pads. Arai stresses the chart is a STARTING POINT: the best fit comes from trying on Arai's different interior fit shapes.
Arai Helmets size chart
| Size | Head circumference (cm) | Head circumference (inches) |
|---|---|---|
| XS | 53-54 | 20 7/8 - 21 1/4 |
| S | 55-56 | 21 5/8 - 22 |
| M | 57-58 | 22 1/2 - 22 7/8 |
| L | 59-60 | 23 1/4 - 23 5/8 |
| XL | 61-62 | 24 - 24 3/8 |
| 2XL | 63-64 | 24 3/4 - 25 1/4 |
| 3XL | 65-66 | 25 5/8 - 26 |
One head-circumference chart covers all current Arai models — what differs per model is interior SHAPE, not size: Intermediate Oval (Corsair-X, Contour-X, Defiant-X, Regent-X, XD-4/XD-5, VX-Pro4 — fits most North American heads), Round Oval (Quantum-X), Long Oval (Signet-X). Try the shape that matches your head. Not every model runs every size (e.g. Corsair-X standard range XS–2XL). Arai publishes CM ONLY on every official arm — inch values here are exact conversions (×2.54, nearest 1/8″), not manufacturer-printed; retailer inch charts differ because they round differently. Labels normalized (XXL/XXXL → 2XL/3XL). Extreme sizes (3XS 49-50, 2XS 51-52) are select-model/special-order and not on the current chart. No youth motorcycle chart exists (the CK-6 is a karting helmet). Verified from araiamericas.com chart image + whyarai.co.uk 2026-07-13.
Manufacturer sizing data · verified July 13, 2026