Always in development. With a design and materials used in aerospace engineering, we have managed to bring the D4 Composite helmet down to 1050 grams without compromising strength. The Mips C2 protection system provides an additional layer of safety in the event of a fall. For comfort, the D4 Composite features an airflow system that channels cool air through a front air intake, through the polymer center, and the Power-Grid side mesh to keep the head cooler during rides. X-static and XT2 antibacterial and odor-reducing padding ensure that the inside of the helmet remains a significantly more pleasant place.

• Mips C2 rotational impact brain protection system
• 20 highly ventilated intake and exhaust ports for maximum ventilation
• Additional EPS and a new head shape for improved impact performance
• Complete incremental size adjustment for a larger adjustment range
• Strategically placed internal forehead band inserts for comfort and durability
• Quick-release and contoured 3D cheek pads for emergency helmet removal
• Specially designed internal cavities for audio integration
• Stainless steel D-rings on the chin strap are lightweight and strong
• Includes TLD pull strap for the helmet
• Exceeds cycling certifications: CPSC 1203, CE EN 1078:2002+A1:2012 ASTM F1952-15, ASTM F2032-15, ASTM F2040-11.