I've noticed someone has started selling small packets of the size 7 on ebay. I emailed and asked him about the size of the diaper. He stated that the length was 21.5", the front width was 11.5", the back width (not stretched out; tapes closed) was 13.5", and the crotch was 9". I myself got out a size 6 cruisers; the dimensions of it were as follows: Length 19", front width 11.5" (this was including the landing zone wings; I do not know if that was included as part of the measurements for the size 7), back width (not stretched; tapes closed) 13.5", crotch 8". The only difference seems to be an increased length by 1.5" and another inch added to the width of the middle of the diaper. Assuming that the individual from ebay was correct with his measurements, this seems to indicate that the size 7 is merely a longer diaper.