They are all designed to contain, within reason, both fecal matter and urine. The incontinence briefs will absorb fluid and will wick away moisture from fecal matter. This does not mean that you can put one on in the morning and leave it on indefinitely. If you are dealing with excessive fecal matter, diarrhea for example change the brief more often. If it continues a check for C-diff or other medical problem should be done.
I don't believe that anyone makes an adult diaper specifically for poop. The Depend type diapers with the elastic around the legs and waist will keep the poop in better than the tab type diapers, but they are more expensive. Also it's important that you buy the right size diaper for your loved one, as if it is too big, you will have more messes as well. Best wishes.
The incontinence briefs will absorb fluid and will wick away moisture from fecal matter.
This does not mean that you can put one on in the morning and leave it on indefinitely.
If you are dealing with excessive fecal matter, diarrhea for example change the brief more often. If it continues a check for C-diff or other medical problem should be done.
Also it's important that you buy the right size diaper for your loved one, as if it is too big, you will have more messes as well. Best wishes.