That I don't know. The sleeve says "An Original Incipio (R) Since 1999". I chose the black version, there were a few other colours. The SP3 fits easily into it and there is a little space inside which ensures that the fit is not tight. There is a pocket on one side. That is where I have stored the pen for the moment. I think - though I have not yet tried it - you could stuff the charging block and wires inside seeing that the charging block is slim.
I'm in Edmonton today. Going to head over to the West Edmonton store and check them out!