Kammala wannan magana: A shekara ta 1966, Simpson ya sadu da dan saman jannati na NASA Pete Conrad, wanda ya gabatar da Simpson ga kayan Nomex da aka yi amfani da su a cikin kayan sararin samaniya don shirin Apollo. A kusan lokaci guda, DuPont kuma ya kusanci kamfanin Hinchman game da samar da sutturar tsere ta Nomex. A cikin Indianapolis 500 na wannan shekarar, direba Mel Kenyon ya sa kayan wuta na Nomex wanda Hinchman ya samar. Daga baya a waccan shekarar, direbobin da yawa sun fara gwada gwajin Nomex na gwaji don Simpson, gami da direbobin F1 Walt Hansgen da Masten Gregory, direban NASCAR Marvin Panch, da kuma SCCA Trans-Am Series direban Bob Tullius. Kamfanin Simpson na Kamfanin Simpson Performance Products ya fitar da suturar tseren Nomex ta farko ta kasuwanci, wanda ake kira "Heat Shield Firesuit", a cikin 1967. Masu fafatawa 30 daga cikin 33 a gasar sun sa rigunan.
1967 Indianapolis 500. (Gasar tseren Indianapolis ta shekara ta 1967)