The reigning king of full-face helmets, the D4 range expands with a Polyacrylite model packing the same safety and comfort features as the premium carbon and composite models into a price-conscious shell. Details make the D4 the most coveted full-face in mountain biking, including Mips® C2 brain protection, an air intake system for ventilation, and an unmatched anatomical fit.

This helmet is designed and intended exclusively for use by bicycling activities, including mountain biking and off-road cycling.

Specifications:

• 20 high-flow intake and exhaust ports for maximum ventilation
• Added eps and new headform shape for improved impact performance
  
• Full incremental sizing for greater range of fitment
  
• Strategically placed interior chinbar shock pads for comfort and durability
  
• Quick-release and contoured 3D cheek pads for emergency helmet removal
  
• Purpose-built internal cavities for audio integration
  
• Stainless steel chinstrap D-rings are light and strong
  
• Includes TLD drawstring helmet sock
  
• Exceeds bicycle certifications: CPSC 1203, CE EN 1078:2002+A1:2012 ASTM F1952-15, ASTM F2032-15, ASTM F2040-11
  
• Not intended for use with motorized vehicles