I bought a bottle of the black dye this morning and started working on this little project. I followed the directions from their site exactly.
During the process it looked promising....After the items had been rinsed, washed and dried...well it wasn't as successful as I had hoped.
Black Pants - Before
Black Pants - After (these do look much better)
Navy Shorts - Before
Olive Capri pants - Before
Olive Capri Pants - After they are more like charcoal gray and not sure if I have anything that would go with them.