If your looking for a non-sagging and sturdy belt to last a lifetime try Looper Belts .
The belt I got at my local gun show has two straps of premium leather with a Kydex insert to prevent sagging or warping ! It has a simple brass buckle but is allen screwed on and has leather gripper screw nuts that attach to the allen bolt ! (nice setup) I wanted to try it out the other night so I set it up with my Galco Phoenix and Ruger GP100 4" in .357 (40 oz.loaded) and it was awesome ! After many belts that I thought would make the grade only this Looper held up and felt comfortable ! Next show I'm gettin' one in black ! They're $50 apiece but well worth it .....