I carry IWB, always up front (just to the right side of my belly-button) (I'm skinny and it's the only way that works (concealed)). I've always used holsters with the metal belt clip and a thumb break.

Just bought a glock 26 and have my eye on the bianchi IWB. It has the metal clip but no thumb break. I'm leery of that. Just how securely will it hold my gun?

Thx in advance.