Baby is 6 months old today, 16 lbs and in the 55 percentile in size.  His thighs have one little fat crease. And he is just beginning to crawl.  However, even the large size of the Kneekers were to small for him.  They were rather difficult to put on him.  But even then the elastic at the top was to tight, and after being on only a few minutes, the Kneekers had already made marks on his legs.

Giving them 4 stars for the concept, but just know these are for babies with very small legs.