It's a Kontroller bag which seems to be hard to come by these days. Pity.
It’s good to hear you like it. I have the very first one they did, and I still think it’s the perfect bag for anyone needing to move through crowds or travel and carry it in one hand or on the shoulder.FYI Studio Slips has an FM3 + FC6 gig bag, I just picked one up. Really like it, perfect fit, enough room in the top pocket for two DVP4 expression pedals, their cables, and a power cord.