I have had an Akai EWI4000S for a while now (5 years? More?) I should probably at some point do a review of it and why you should get the 4000S instead of the crippled USB only version (or maybe that is the review?). But what I can say is that I saw on Amazon the case that I totally love for it, which I had a HELL of a time getting from the Woodwind and Brasswind (backorder hell basically).
The Ritter Soprano Saxophone case works great for an EWI. It’s stylish, has enough compartments for your iRig, 1/4″ cable, and power supply. The current cases have a large RITTER logo on them (mine is several years old and doesn’t have that), but the basic design is the same. Check it out.
Side note…..if anyone has a line on where to get the clip in battery thing for an EWI 4000S….I need one. Mine is lost.