DD was around the 9kg mark at her 1st birthday, and still wearing some 00's and 0's. But 7months down the track she's made up for it! She hit the 12kg mark just before xmas, and has shot up height wise - enough that some size 2's are getting short on her , she's also gone from a size 4 shoe when she got her 1st pair of real shoes back in August to a 6.5 in the first week of Jan - which are now looking like they won't last the summer! I think most of DD's growth has been in her legs, as she can still fit into a couple of her 0 tops.