Not so, Kris. In the late 80's & early 1990's just before a transition to the CHinese made stuff, 5.10/Vertical made a shoe called the 'Friction Loafer' this was basically the competition for the Boreal Ninja. The shoe was black, and only black.
Tony, I stand corrected. I gotta admit, I used to own a pair of Diamonds not knowing they were ladies' shoes. I liked them 'cause they were very comfortable and black. Then I got laughed at at the New for wearing them by a bunch of my buddies in yellow, pink, and purple shoes. It was kinda funny. I wish I had a video of that, hehe.