The tall style and fur on top looked a little too big on my 10 year old's calf. She loved it online but did not like how it looked once received. The actual 5M fit was true to size but we decided to go back to a shorter boot style.
This is my second pair of UGGs. Once again I followed the advice of others and ordered the "big kid" size 4. I wear a womens 6.5. I wasn't disappointed......they are perfect! I love the style and as always they are cozy. Like all UGGS when they are new, they are a bit snug, but after a couple of wearings they relax slightly for the perfect fit. I love that I am able to order down in size to save some money. That way I can have several pairs!