I tried a Medium Tranquility ATN brief today. It did seem a
little bit smaller than other mediums I've worn but is otherwise
ok for me. I'd have to conclude that the size for ATN is about the same as the SlimLine. I like consistency.
One notable difference between them however, is that the SAP goes all the way up to the waist line on the front of the ATN. This is so important for overnight, even though this isn't the most absorbent diaper on the market. The SlimLine on the other hand, stops substantially before the waist line (it's just plastic). Aside from absorbency, this makes the SlimLine suitable only for daytime wearing, which I guess is why it is market that way.
This begs the question: is this the only difference in absorbency between the two?
