introducing

509 X 43i

Ken Block and 509 were partnering on the development of the KB43VER Altitude 2.0 Limited-Edition Helmet and finalizing design just months before his accident in 2023.  

Relentlessly driven by our passion for riding and the outdoors, 509 is the fuel that enables you to live your passion for adventure through innovative products and inspiring storytelling.

purpose built for the mountains

atmosphere helmet

SABER SINGLE BOA BOOT

Packed with 1000 grams of Primaloft® insulation redefines standards so your feet stay toasty in the coldest conditions

Delta V Carbon Commander

Geared with Cardo Communications Technology, JBL Speakers, Ignite Heated Shield, an active chase light, and Fidlock magnetic chin strap - it's no longer a helmet, it's a cockpit.