I seem to be on a bad run of luck for kids clothing.  I bought these in  shoe size 3-9 for my 10 year old who wears a size 7. The foot area technically matches his foot but it's way too tight, even the part that rolls up the leg is far too tight.  Even rolling these like one would do with pantyhose, he's struggling to put them on his foot.  The material itself seems ok but the sizing is off. These will shrink to completely unusable in the dryer I am sure.