I bought the XS for a 3 year old. I could barely put his head in the hole so the 2 year old ended up wearing a sweater. Even for a 2 year old kid it is difficult to put on or take off because the head hole is so small. Both boys have a 75-90 percentile. I have several H&H items and this is the first one I'm not very happy with due to this issue.
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