Details make the D4 the most sought-after full-face mountain bike helmet, including the Mips® C2 brain protection system, an air intake system for ventilation, and an unmatched anatomical fit.

Features:
• Mips® C2 rotational impact brain protection system
• Advanced polyacrylite shell construction
• Front air intake system, with high airflow through the polymer center and side mesh of the intake grille
• Clavicle suspension system
• Detachable visor screws
• Antimicrobial padding
• 3D contoured quick-release cheek pads for an anatomically optimized fit