Troy Lee Designs D4 Composite Stealth MIPS Adult MTB Helmets Size:Medium Replacement Pinlock-ready face shield for

Replacement Pinlock-ready face shield for HJC i70 helmets

Goggle attached to outrigger for a perfect fitting

Scratch-resistant front zip piping for tank protection

Bluetooth 5

Troy Lee Designs D4 Composite Stealth MIPS Adult MTB Helmets Size:Medium Replacement Pinlock-ready face shield forTroy Lee Designs D4 Composite Stealth MIPS Adult MTB Helmets Always Evolving. Built with an aerospace shell design and materials, we were able to get the D4 Composite helmet to 1050 grams without sacrificing any strength. Mips C2 protection system is used to add an additional layer of safety in the event of a fall. For comfort, the D4 Composite routes cooling air through a front air intake system that flows through the polymer center and power grid