V.K.
Hello R.,
I use Mommy's Touch AIO Touchtape diaper for my daughter and they are one size diapers too. I got mine at
http://www.nurturedfamily.com/
and I love them. I also have used Bum Genius pocket diapers but I like the AIO diapers much better. I had a leak this morning but that was after she had been in the diaper the whole night (from 8 last night to 7 this morning). I have nothing but good things to say so far about these diapers.
Good Luck!
V.