Troy Lee Designs D4 Helmet

The Polyacrylite shell is a high-strength composite material that offers similar structural integrity and safety ratings to the carbon version but at a slightly higher weight. It is an excellent choice for riders who want the D4's proven design and safety features without the premium cost of carbon fiber.

The collarbone suspension system is designed to create a relief zone in the bottom of the helmet. In the event of a crash, this helps reduce the likelihood of the helmet rim impacting your collarbone, which is a common injury point for mountain bikers.

Yes, the helmet features quick-release 3D cheek pads that are designed to be easily removed. This makes it simple to wash the padding to keep the helmet fresh or to swap them out if you need a slightly different fit.

Yes, the Mips C2 system is integrated to reduce rotational forces on the brain during an angled impact. It allows the helmet to slide slightly relative to your head, which helps dissipate energy that would otherwise be transferred directly to your skull.

The D4 uses a front air intake system paired with high-flow center channels and side mesh. While it is a full-face helmet, this design is quite effective at pulling cool air in and pushing warm air out, making it comfortable for lift-access riding or enduro stages.

The helmet is equipped with breakaway visor screws. These are designed to snap off during an impact, which helps prevent the visor from snagging on the ground and potentially causing your head to twist or jerk unexpectedly.