I carry
my Para Tac Four and my G22 in IWB holsters from Tucker Gunleather, their "Texas Heritage" model. They have sturdy black plastic belt clips--not j-hooks. The clips are more obvious than leather snaps would be, I believe, especially if the snaps match the belt leather. But on the other hand, it is very easy to remove the holster and put it back on, if your daily routine requires that-as mine does.
Since getting these holsters, I've completely abandoned my belt slides. There's just no need. In cool weather, I don't tuck my shirt (these are tuckable holsters) and I don't have to worry about my top garment riding up and exposing holster or muzzle. In the warm months I tuck. Simple.
I got a good belt (Urban Gunbelt or UGB from Bulman Gunleather) and found I didn't need to change my pants size at all. In my office I put the pistol in a desk mount. If entering places where I can't carry, I put the pistol in the glove box. In these circumstances, I tighten the belt one notch for better fit, then loosen one notch when I reholster the gun.
I'm 69"/175 lb with a bit of a spare tire thanks to my love of fine ale, but I have no trouble concealing a full-size auto all day in complete comfort. I'm sold on IWB tuckable holsters.