TLD D4 Polyacrylite MIPS Helmet - M/L - Linear Black netsuite-webdata-created Breathable Air Flow back panel

Breathable Air Flow back panel

but you don't need to lug a heavy pump around with you to avoid being stranded

Better performing

6 Top - IS52-40 Bottom - to suit frames with a 42mm internal diameter top and 52mm internal diameter bottom and 1

TLD D4 Polyacrylite MIPS Helmet - M/L - Linear Black netsuite-webdata-created Breathable Air Flow back panelD4. Redefining everything 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. This helmet is designed and intended exclusively