Icon Alliance Black Oro Boros Helmet

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