What are good diapers for teens that dont need diapers?

I'm 13 and I'm about 78lbs. 5"1' so I'm a "little" underweight for my age but i just use like size 5 baby diapers but i can squeeze into a size 3 so i would say just get a size 6 (biggest size) in baby diapers.

You could get goodnites or underjams