Anyone familiar with the sizing on H&M snow suits like this one: http://www.hm.com/us/product/84406?article=84406-E?
I need this for trips around Christmas (Wisconsin) and in February (Colorado), he's currently wearing 12 month clothes. I feel like he could size out of 12 month clothes before February, unless it runs big. He's currently close to 7 mo and was almost 19 lbs, 27 inches at 6 mo appt. Any advice?