BattleStar Galactica uniforms?

We see a few different digital pattern uniforms pop up throughout the
series, including a black and gray pattern (urban combat) as well as a
woodland variant. Where did these uniform designs come from? Are the
uniforms made by the costume designers, or are those woodland and
urban patters actually utilized by an existing military. I'm curious
as to whether these patterns actually exist and who uses them, or if
they were created strictly for the show.