I've never heard of diaper flannel, but there are all kinds of cloth diapers on the market now, and probably a flat diaper would be most similar. (jellibeanjournals.com)
You won't find this feature in any other cloth diaper on the market! (diaperjunction.com)
With so many cloth diapers on the market today, it can seem impossible to choose just one style. (diaperjunction.com)