Two tone tonic trousers were worn by Mods, Skinheads and Suedeheads in the late 60's and early 70's. They were mostly made to measure as part of a tonic suit but Levis made them in Staprest, as did other manufacturers, but Levis' were considered the best.
Two-Tone Tonic Trousers made a revival with groups like Madness, The Jam, The Specials in the late 70's.They can still be had now if you know where to look.
Do You Remember Two-Tone Tonic Trousers?
Do You Remember Two-Tone Tonic Trousers?