Troy Lee Designs D4 Polyacrylite Helmet

The Polyacrylite shell offers the same iconic D4 silhouette and safety features as the carbon model but uses a heavier, more durable composite material. While it carries a slight weight penalty compared to the carbon version, it provides nearly identical impact protection at a more accessible price point.

The Collarbone Suspension System is a specialized design feature that creates a relief area around the collarbone. It is engineered to help reduce the risk of clavicle injuries during a crash by preventing the helmet's lower edge from directly impacting the bone.

Yes, the helmet features quick-release, contoured 3D cheek pads that can be easily removed. This makes it simple to wash the anti-microbial padding or swap the pads for a different size to achieve a more precise, anatomical fit.

The D4 Polyacrylite is designed with a high-flow front air intake system that channels air through polymer centers and side mesh. It is quite effective at keeping you cool during high-intensity descents, though it is still a full-face helmet and will naturally be warmer than an open-face trail lid.

Yes, it comes equipped with the Mips C2 Brain Protection System. This layer is designed to reduce rotational forces transmitted to the brain during certain types of angled impacts.

The visor is secured with breakaway screws designed to snap off upon impact. This feature helps prevent the visor from snagging or causing additional leverage on your head during a fall.