NOMEX used in Apollo 1 suit The article states This version A1C added a white NOMEX cover layer from the G4C and G5C suits The Nomex page calls it a flame resistant material commonly used in racing and firefighting equipment and says it was first marketed in 1967 The Apollo 1 fire burned through Grissom s White s and Chaffee s suits Now conditions were extreme more than one full atmosphere of pure oxygen so it might be possible the NOMEX would burn in those conditions but I ve never seen the suits described as anything other than nylon in any of the literature On a second reading I see NOMEX is referred to in the Gemini suits so you couldn t really say it was added for A1C therefore I m just removing it However there is no citation of the NOMEX