In the picture a Spanish belt. See the stud a few centimetres from the buckle? It's not a stud, it's actually a screw and post fastening that unites the buckle to the length of the belt. Undo the screw, lop a length off the belt and put it all back together and you have a shorter belt that doesn't either have visible dodgy amateur holes punched into it or a loose tail that dangles and catches.
Spain: the place to buy if you're a belt wearer losing weight.