Growth spurt

I literally just got out the 12 month clothes in the last two weeks. Before that, Novak was wearing 6-9 month stuff.
Already some of these new clothes are getting too small. Check out this shirt, which I just put on him for the first time. It's size 6-12 months. (He will be 9 months this week.) I think it may be a one-time wear, as it's tight on his tummy and keeps riding up.