I have a Clinger V3 Stingray IWB on order for my P-01. Looking forward to trying out Clinger.
Today I also tried a Blackhawk leather thumb-break for a Springfield XD 4? that I had on-hand, and I was happy to find that the P-01 fit perfectly! I?m not a big fan of thumb-breaks, but they do have their usefulness at times, and it?s nice to have the option.
The holster came with a used SR9C I bought; which also fits it perfectly, so it makes me wonder if other holsters for the 4? XD and SR9C would fit as well...