Troy lee designs D4 Polyacrylite Fifty-50 MIPS downhill helmet

Conquer any terrain with the Troy Lee Designs D4 Polyacrylite Fifty-50 MIPS helmet. Meticulously engineered for downhill, it delivers unparalleled protection without the weight. Its strong Polyacrylite shell houses the revolutionary MIPS system, reducing harmful rotational forces during angled impacts. Stay cool and focused thanks to an advanced ventilation system and a comfortable, moisture-wicking liner. Combining uncompromising safety with iconic TLD style, this helmet is your key to riding with total confidence on the most demanding trails