I have what must be a custom bag for my s950. I say that because the keyboard arrived inside the bag. It fits the board exactly and even has some clear plastic to go over the controls. There is a Chinese or Japanese business card inside it. I can send you pics if you are interested.

Why would I sell this? Because I got two bags shipped with my board. The second is a Yamaha bag that also fits like a glove. I can send pic of that too. Send me an email if interested.