I've been thinking about sizes and measurements in general lately, more specifically for the little ones in our lives. One issue I hear often from knitters is that their little knitted garments don't fit. And how disappointing is that? All that time and effort spent on something that will be worn for just a moment since the child can't get real, comfortable use out of the item. This has happened to me too and I will agree, I was pretty disappointed. I had whipped up a quick little baby jacket for a baby boy who was 10 months old (and who I hadn't met yet) in the 1 year size. When I gave it to the parents, they kindly slipped it on and, surprise surprise, it barely buttoned across his belly.
So what went wrong? As it is with knitting, there could be a number of reasons why it doesn't fit.