Troy Lee Designs D4 Polyacrylite The Line MIPS Adult MTB Helmets Harley-Davidson Street Glide EFI FLHX 2020 Parts Stretch panel also features breathable

Stretch panel also features breathable mesh for better cooling

SKU: 0134-2126

ADAPTIVE IMPACT SYSTEM (AIS)

Central front zipper for ease of use and greater practicality

Troy Lee Designs D4 Polyacrylite The Line MIPS Adult MTB Helmets Harley-Davidson Street Glide EFI FLHX 2020 Parts Stretch panel also features breathableTroy Lee Designs D4 Polyacrylite The Line MIPS Adult MTB 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