• Forced Air cooling technology for a clever ventilation system and optimal head temperature
• Acticage structure for better safety
• ZOOM Ace fine 3D-adjustement system with handy dial for personalized fit. Ponytail compatible
• Half head ring for better comfort
• Front eyewear dock
• S = 51-55cm / 240g
• M = 54-59cm / 260g
• L = 58-61cm / 280g