Go to suspenders. (the ones with buttons on the pants as connectors). Friggin' comfortable x 10. Easy to adjust the ride height of your pants, classy (IMO), did I mention comfortable? If they are making you take your belt off, you sure are not carrying your gat, so the holster support that the belt provides is a non-factor.
Suspender edicate: no belt, suspenders OR belt, never both (unless you are falling trees for a living), belt loops are ok on your pants, no need for hoity-toity suspender only pants (those have no loops and ride about 2 inches higher). Suspender are 'underwear' so keep your jacket on (this is not a 1980s Wall Street movie). Even though they are 'not to be seen', keep them classy and simple, no loony-toons prints. Same rule as belts, they should match your shoes.