Conquer Any Descent with Confidence in the Troy Lee Designs D4 Polyacrylite MIPS HelmetThe Troy Lee Designs D4 Polyacrylite MIPS helmet represents the pinnacle of downhill mountain bike protection and performance. Engineered for the most demanding riders and racers, the D4 Polyacrylite MIPS doesn´t compromise on safety, comfort, or style. This helmet is built to withstand the harshest impacts, featuring a technologically advanced construction that combines a Polyacrylite shell with a dual-density EPS liner. This combination provides exceptional impact absorption and penetration resistance, exceeding safety standards and giving you the confidence to push your limits. But the D4 Polyacrylite MIPS is more than just a fortress for your head. It´s designed with comfort and ventilation in mind, ensuring you stay cool and focused even on the most intense descents. 24 ventilation ports work in tandem with internal air channels to create exceptional airflow, preventing overheating and keeping you comfortable on long rides. Features that set the D4 Polyacrylite MIPS apart:* MIPS Brain Protection System: Reduces rotational forces on the brain in the event of an angled impact, adding an extra layer of crucial protection.* Precision Fit: Adjustable cheek pads and a refined fit system allow for a personalized and secure fit, ensuring maximum comfort and stability.* Removable, Washable Liner: Stay fresh ride after ride with a comfortable liner that´s easy to remove and clean.* Titanium D-Rings: Secure and lightweight closure system for a reliable and comfortable fit.* Race-Inspired Styling: Aggressive lines and bold graphics make a statement on the trails.Technical Specifications:* Weight: 1000 grams (size Medium)* Certification: CPSC 1203, CE EN1078, ASTM F1952-DH, ASTM 2032-BMX* Sizes: XS/S, S/M, L/XL* Attributes: Adult, MIPSThe Troy Lee Designs D4 Polyacrylite MIPS helmet is the ultimate choice for downhill riders who demand the highest level of protection, performance, and style. Ride with confidence, knowing you have the best helmet in the game protecting you every step of the way.