The Troy Lee Designs D4 Polyacrylite Helmet brings race-level protection and comfort into a tougher, more accessible package built for serious gravity riding. Sharing the same aggressive DNA as the premium D4 models, this helmet delivers the fit, airflow, and confidence riders expect when speeds get high and the terrain gets rough. The advanced Polyacrylite shell keeps durability high, while the Mips C2 protection system adds an extra layer of rotational impact safety when things don’t go to plan. Massive airflow through the front intake system helps keep you cool on long descents and bike park laps, while the anatomical fit and quick-release cheek pads keep comfort locked in all day. Finished with signature D4 details like the Collarbone Suspension System and breakaway visor hardware, this is full-face performance without compromise. Built to send. Ready for anything. Key Features Mips C2 protection system – added rotational impact protection for aggressive gravity riding Advanced Polyacrylite shell – durable construction built for downhill and freeride abuse High-flow ventilation – front intake system and side mesh keep air moving through the helmet Anatomical race fit – contoured quick-release cheek pads for comfort and secure fitment
