Product Description
Head to tail and back again. Sometimes helmet graphics are divine inspiration. Other times they are the result of pre-nooner trips to a local Portland dive bar. The Alliance Oro Boros represents the latter. A serpent that eats itself, only to be reborn with the next dawn, providing yet another opportunity to pound a cold one before a.m. turns to p.m.
- Injection Molded Polycarbonate Shell for Strength
- Long Oval Headform
- Wind Tunnel Tested and Refined
- Molded Twin Channel Supervent for Increased Cooling
- Rear Exhaust Ports Prevent Heat Buildup
- Removable Molded Breath Deflector Reduces Shield Fogging
- World Standard, Meets DOT FMVSS 218 (US), ECE 22-05 (Europe), SAI AS1698 (Australia) & PSC (Japan) Helmet Safety Standards. Does Not Ship with SAI or PSC Certification Stickers Unless Purchased From an Authorized Dealer in That Country.
- Chin Venting System Reduces Shield Fogging
- Fully Removable/Washable HydraDry™ Interior
- Quick-Change Fog-Free Proshield™ with Sideplates
- Prolock™ Shield Locking System
- Quick change Interchangable/Removable DropShield
- Includes Dark Smoke Internal DropShield™
- DOT, ECE approved
Sizing Chart
| Head Shape |
|---|
  |
| Sizing Chart | ||
|---|---|---|
| Helmet Size | Inches | Centimeters |
| 2XS | 20 1/8" - 20 1/2" | 51 - 52cm |
| XS | 20 7/8" - 21 1/4" | 53 - 54cm |
| S | 21 5/8" - 22" | 55 - 56cm |
| M | 22 3/8" - 22 3/4" | 57 - 58cm |
| L | 23 1/8" - 23 1/2" | 59 - 60cm |
| XL | 24" - 24 3/8" | 61 - 62cm |
| XXL | 24 3/4" - 25 1/8" | 63 - 64cm |
| 3XL | 25 1/2" - 26" | 65 - 66cm |
Additional Information
| MPN | 0101-10686 |
| MPN | 0101-10687 |
| MPN | 0101-10688 |
| MPN | 0101-10689 |
| MPN | 0101-10690 |
| MPN | 0101-10691 |
| MPN | 0101-10692 |
| Head Shape | Intermediate Oval |
