I predict the
CrossBreed aiwb will be popular and, like other CrossBreed holsters, not something I'd use if I could make a
string holster from my own entrails instead.
I'm not at all a fan of these so-called hybrid holsters. The big shirt guard tends to flop over and close at what should be the holster mouth, forcing many people to use two hands to reholster their gun (which, with aiwb, means you're very likely not able to hold your concealment garment out of the way, eliminating your ability to
see what you're doing) and also leading to a dangerous tendency of pointing the gun inward toward the body during the holstering process.
I've actually seen more students struggle and become dangerous with CrossBreed and similar hybrid holsters than SERPAs, and that's saying something.
It's also telling that the new CrossBreed aiwb is only designed for small pistols. They don't even offer it for something as easily concealed as a Glock 19. From the photos it appears there is nothing to keep the butt pressed into the body or to control yaw. It also looks like there is a one-size-fits-all back, so if you get one for a tiny gun you're stuck with a giant shirt guard and footprint.