My adult son has had issues his whole life with his pants slipping down. Not a fashion choice like for so many other young men out there, his body is just very straight, his hip and waist are about the same. We've tried other kinds of suspenders, and they help, but sometimes the clips aren't secure enough. Belts are just completely ineffective. When I ordered him a pair of these, it was my last step before getting the buttoning kind of suspenders and putting buttons on his jeans and shorts.
These work. The clip holds very securely, and the thick, wide elastic is strong enough to handle even his cargo pants when he has all the pockets full. The little pin on the clip doesn't seem to be harming any of his clothes. I like them well enough that I'm buying them for my uncle and my husband as well. I absolutely recommend them.
My son is 6'1" with a very long torso and these work just fine with room to adjust.