I have a 28" waist and the new Pampers cruisers 7 fit but just fit. They don't wrap around like a diaper and the lenght is shorter then an adult small diaper. All I can say is that they are tight on me with a 28" waist. The plus side they are very absorbent, I just wish they made adult diaper like Pampers. I think they would work great with a 26" waist, anything bigger and the side start looking like rubber bands and not like a diaper.