D4 Helmets D4 reigns king atop downhill podiums and BMX events across the globe. Details are what makes the D4 the most coveted full-face in mountain biking. Prioritizing safety while balancing weight through premium construction and materials, D4 incorporates Mips®protection with an EPP chin bar and anatomical cheek pads with emergency release. Specifications Mips® C2 Rotational Impact Brain Protection System 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
