It's usually used in combination with some kind of plate carrier, like a slick LBT-6094, Veltye Hugger or just a PACA as shown above.
Color of this rig is tan and as such it's the very first piece of gear that I own in tan color. I have to admit that I am a bit tired of my coyote brown gear. I am not selling the FSBE II collection though, as I cannot bare to part with it yet. :)