One of the teenagers at my church bought me one of those cloth holsters that fit inside the waistband of your pants and have Velcro like stuff to keep it in place, no loops or clips. This for a Model 19 Smith.
Well, I thought I'd give it a try. I stood in front of the door mirror and checked it out. It slipped.
It , gun and holster, slid down my leg into the top of my right boot. I was wearing Lee jeans this day, and could not pull up my britches leg as the gun inside my boot leg bound it up. So, unbuckled my belt, opened the fly and dropped my jeans around my ankles.
My wife entered the room about that time and was somewhat startled. "What are you doing?" she asked.
"I'm goin' for my gun," I told her.
Kept with leather holsters with slots ever since.