I purchased the Docker's Men's Suit Separate Vest in size Medium, color Black Solid Herringbone.  I've worn it many times, both with jeans and suit pants to dress them up, and always get compliments.  Overall, the vest fits well, though I find the bottom flares out a bit more than my body does.  I like the 5 button styling a lot, and the two front pockets (one open, one sewn shut but available if you prefer your pocket watch on the other side).  The Herringbone pattern is simply the weave, so it has no color pattern - it truly is solid black.