Keltec goes wherever, back pocket, side pocket, vest pocket, even have iwb holster for it.
XD 40 sub compact goes in Kholster iwb. its the most comfortable holster I have ever tried, i can where it behind my right hip slightly and sit on it to drive, and do every normal activity w/o even knowing it is there.
It looks big but conforms and is seriously comfortable. plus very reasonable on price. It also allows you to tuck your shirt in if you want.