Gore-Tex Ride On cabels.
Gore-tex ride on cables is a brand name for brake and derailleur cables with both an inner sleeve as a Gore-Tex jacket of the inner cable so that the friction of the inner and outer casing is very low.
On the website of Gore-tex ride on cables is now reported as follows:
GORE® RIDE On® Cable Systems are no longer available as of December 31, 2012.