D4 Carbon Helmet W/MIPS Troy Lee Designs X SRAM Radioscape Black / Berry Size:L Ventilation and stretch panels hit

Ventilation and stretch panels hit the sweet spots where movement and airflow matter most

Details make the D4 the most coveted full-face in mountain biking

but comfort is still a priority

Whether racing at the track

the Troy Lee Designs Lilium Women’s Jersey is at home on all trails

D4 Carbon Helmet W/MIPS Troy Lee Designs X SRAM Radioscape Black / Berry Size:L Ventilation and stretch panels hitThe 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.