Depends on the pants of course but any belt even a cheap one would sag less than pants alone.
Some of them Carhart pants made out of heavy canvas might hold up pretty good. Course canvas with a good belt would be better yet.
In Memory of Paul "Dietrich" Stines.
Dad: Say something nice to your cousin Shirley
Dietrich: For a fat girl you sure don't sweat much.
Cue sound of Head slap.
RIP Muggsy & TMan
"If you are a warrior legally authorized to carry a weapon and you step outside without that weapon, then you become a sheep, pretending that JOCKO will not come today."