Isaac in a one suit pyjamas. He used to wear lots of these when he was younger, but then he outgrew all of them. I got this one which was for 18 months old baby, which, everytime I held it up, it looked very long. But we just tried it one day and it fit perfectly!
It has this non-slip substance at the base, much like how some socks have them. So he didn't slip while trying to walk in them. Here's him using the walker. He could walk on his own but not as steady yet. With the walker, he could zip around very quickly.