I don't think they ever have. Good for them in branching out I think that looks clean, rivalry and bias aside of course lol.
Black pants over black socks has to be the worst design idea in modern football uniforms.
The socks and pants need to contrast. Otherwise they look like they're wearing yoga pants. And I like me some yoga pants as much as the next man but not necessarily on football players.
Case in point... ugly navy pants/navy socks...

Compared to attractive navy pants/red socks...

So shame on Iowa for trying to ruin yoga pants for me.
