DD was 5pound 15 & was in 00000 bonds wondersuits for a couple of weeks, then into normal 00000 for another couple of weeks then 0000's for around 2 months.
You will find that different brands are different sizes as well. DD didnt wear quite a few things because they were labelled as one size & when she was at that size we got them out & they were too small. Others you will find are huge, DD still fits her 000 Sooki Baby jacket with room to spare (which Im happy about because its about the only item I paid full price for:D)

