Giro Atmos Helmet front side view
Riders wearing the Atmos
Lance Armstrong wearing the Atmos in the Tour de France
Atmos injection molded roll cage.
Atmos roll cage in position prior to molding on the male side EPS tool.
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Atmos Helmet

Giro Atmos-2004

Industrial Designer Greg Marting

My role: Atmos was my first helmet as mechanical lead. The Giro Product Brief specified there be no visible strap attachment points on the exterior of the helmet and a carbon beam across the front. I used two thermoplastic carbon components to expand the carbon coverage to additional areas. The strapping anchors were buried inside the EPS (helmet foam) and attached to the plastic roll cage. I got a patent for this technique. (US7739783)
As a junior engineer at the time I needed to work very closely with Greg Marting and employed the services of Pattern Worker Irving Aguiar. In those days helmets were released via hand made clay masters and were copy milled at the helmet vendor. I executed roll cage cad and other internal components and managed testing. Webbing was in-molded at the EPS press, another first, and I worked with the vendor to figure out how to do that without damage or kinking to the webbing material.

Gregg Jacobsen
Sr. Mechanical Design Engineer Santa Cruz, CA