Troy Lee Designs 26.1 D4 Poly Fullface Mips MTB Helmet Roamer knee delivering the high velocity cooling

delivering the high velocity cooling needed to stay comfortable during the toughest indoor workouts

front-snap design that feels natural and secure while making it easy to take on and off

Reinforced inner layer for added durability

streamline silhouette

distributes weight evenly and is also easy to open/close from the side

Troy Lee Designs 26.1 D4 Poly Fullface Mips MTB Helmet Roamer knee delivering the high velocity coolingD4 Polyacrylite MIPS Full Face Helmet Price conscious, comfort and safety DISCIPLINE: Downhill, BMX 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