JUST1 J-STR Helmet – Union Gray / Black Matt
Subtle matte design with sporty DNA & strong safety
The JUST1 J-STR Union Gray/Black Matt combines a clean, sporty matte finish with modern safety and comfort technology. Perfect for riders who prefer a calmer yet powerful design – without compromising on protection, comfort, and technology.
The helmet meets the latest ECE 22.06 standard and is ideal for commuters, touring riders, and sporty street riders.
🛡 SAFETY – developed to the latest standards
The Union relies on the proven safety platform of the J-STR series:
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robust ABS outer shell (2 shell sizes)
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EPS inner shell in 2 sizes
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ECE 22.06 certified
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DOT certified
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J.I.E.R. Emergency Cheek Pads Removal System
→ facilitates helmet removal in an emergency -
sturdy Double-D closure
For riders who expect reliable all-round protection.
😌 COMFORT – hygienic, soft & easy to care for
The interior is optimized for long wearing times:
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Protx2™ antimicrobial inner lining
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removable & washable
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comfortable cheek pads for a stable fit
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effective ventilation system for optimal air circulation
The helmet remains pleasantly fresh during heat, touring, and long distances.
👁 VISOR – wide view & anti-fog prepared
More overview for increased safety:
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large Wide Vision visor
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scratch-resistant
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Pinlock 70 ready (lens available as an option)
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including Nose Cover
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including helmet bag
Perfectly suitable for urban traffic, country roads, and sporty rides.
🎁 SCOPE OF DELIVERY
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JUST1 J-STR Union Gray/Black Matte
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Nose Cover
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helmet bag
📏 Size Chart (Adults)
| Size | Head circumference (cm) | Inch |
|---|---|---|
| XS | 53–54 | 20.9 – 21.3 |
| S | 55–56 | 21.7 – 22.1 |
| M | 57–58 | 22.4 – 22.8 |
| L | 59–60 | 23.2 – 23.6 |
| XL | 61–62 | 24.0 – 24.4 |
| XXL | 63 | 24.8 – 25.2 |
🧭 This is how to measure your helmet size correctly
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Position the measuring tape just above the eyebrows
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Measure the head circumference at the widest point
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2–3 measurements for accuracy
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The helmet should fit snugly but comfortably
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If it slips → choose one size smaller
🚀 CONCLUSION
The JUST1 J-STR Union Gray/Black Matte impresses with a modern, understated matte design, high safety according to ECE 22.06, and strong everyday comfort. Ideal for riders who want to perfectly combine sportiness and understatement.
