509 Altitude 2.0 Hi-Flow Helmet (ECE)

Engineered with larger chin bar intake and rear exhaust vents. All open vents removed shutter for increased flow, plugs removed, more breathable for mountain riders. Combined with an ultralight ECE layup this helmet is optimized for the most demanding off-trail riders.

FEATURES

• XS to 4X sizes available in three shells for optimal fit and minimal weight
• Upper vents for optimal airflow
• Go-Pro® mounting capability, improved design
• Fidlock® chinstrap strap closure for easy in and out
• Perfect fit between helmet eyeport and 509 goggles
• Pro-Series Breathbox for complete protection, removable for optimal air flow
• Weight: ECE helmet starting at 1115 grams for ECE