Troy Lee Designs D4 Polyacrylite Helmet Block w/MIPS

The Reigning King of Full-Face Helmets 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. Mips® C2 Rotational Impact Brain Protection System Advanced Polyacrylite shell construction Front air intake system, with high flow through polymer center and power grid side mesh Collarbone Suspension System Breakaway visor screws Anti-microbial padding 1150G Quick release contoured 3D cheek pads for anatomically optimized fit