In addition to the Miter case, I just picked up this one.
TomToc Portfolio Case Pro - While my Dpt-CP1 is protected primarily by the Miter flip case, I wanted additional protection when I travel with pockets for accessories, business cards, and spare stylus. This thing is solid and allows for plenty of accessories. The CP1 with Miter case and stylus in the loop fit in the pocket. Very pleased.
https://www.amazon.com/gp/product/B0...0?ie=UTF8&th=1
FYI, I felt the non-pro case wasn't as good as it was a bit slimmer. The accessories were applying unnecessary pressure to the CP1.