Uniform vs Esks

Padon my ignorance, but I noticed that the Riders were wearing some kind of black and red uniform, I beleive that was the first time I had seen it... what was its signification ?

Its the centennial this year for football in Saskatchewan and the uniforms had to do with what the original Regina Roughriders wore - which was black, red, and silver. Those colours were worn from 1913ish to 1947ish. I could be off on the dates.

too long/don't read: It's our original colours.