TLD D4 Polyacrylite MIPS Helmet - M/L - Linear Blue eBay Suggested terrain use: Hardpack

Suggested terrain use: Hardpack

113mm L x 103mm W

Ventilation: 13 large-bore vents offer a happy medium of ventilation to coverage

SID B1 (2017+)

TLD D4 Polyacrylite MIPS Helmet - M/L - Linear Blue eBay Suggested terrain use: HardpackD4. 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