Troy Lee Designs D4 Polyacrylite MIPS Bike Helmet 2026 in Black size X-Small

evo.com | Troy Lee Designs Bike Helmets > Meet the Troy Lee Designs D4 Polyacrylite MIPS Bike Helmet, a game-changer in the world of full-face protection. Packed with all the same comfort and safety innovations like MIPS(R) C2 brain protection and the D4's unbeatable anatomical fit, it's the ultimate choice for riders seeking top-tier performance without breaking the bank. This helmet is designed and intended exclusively for use by bicycling activities, including mountain biking and off-road cycling. Front Air Intake System with High Flow Through Polymer Center MIPS(R) C2 Rotational Impact Brain Protection System Advanced Polyacrylite Shell Quick Release Contoured 3D Cheek Pads For anatomically optimized fit. | Troy Lee Designs D4 Polyacrylite MIPS Bike Helmet 2026 - X-Small in Black