Giro Register II Helmet
The Giro Register II Helmet is the ideal choice for mountain bikers seeking a lightweight, comfortable, and high-performance helmet.
Features
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Fit System: Roc Loc® Sport
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Ventilation: 19 Wind Tunnel™ vents with deep internal channeling
Specifications
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Quick Link removable visor
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Reflective rear decals
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Quick-dry padding
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Universal Fit sizing
| Adult Size | Circumference |
|---|---|
| S | 51 - 55 cm |
| M | 55 - 59 cm |
| L | 59 - 63 cm |
| XL | 63 - 65 cm |
| Universal Adult | 54 - 61 cm |
| Universal Womens | 50 - 57 cm |
| Universal X-Large | 58 - 65 cm |
