Troy Lee Designs A3 Halo 2026 MIPS Adult MTB Helmets Size:X-Large/2X-Large D4 reigns king atop downhill

D4 reigns king atop downhill podiums and BMX events across the globe

shoulders and back and improved physiological and cognitive performance with a supremely well fitting and well ventilated construction

Two exterior chest pockets and two handwarmer pockets

Cordura covered TPU knuckle

Troy Lee Designs A3 Halo 2026 MIPS Adult MTB Helmets Size:X-Large/2X-Large D4 reigns king atop downhillTroy Lee Designs A3 Halo 2026 MIPS Adult MTB Helmets Head of the class, A3 leaves nothing to chance by setting the modern standard in protection and fit as demanded by Troy Lee Designs athletes. Equipped with Mips protection, the co molded EPP EPS design features sixteen vents to optimize airflow making for a helmet that is so comfortable it practically disappears on your head. Co molded EPP and EPS Mips B Series Rotational Impact Brain Protection