I was pleasantly surprised when these arrived.  I expected thinner socks, but these are on the thicker side (just like adult crew socks).  My 19-month-old is a pro at taking off her shoes and socks, especially as they get too small, but she seems to like these.  I like the fact the cuff isn't so tight that it leaves a ring around her chubby little calf.  I'll definitely continue to purchase this brand as she grows, and I'll just have to hope they quality stays as nice.