I bought the socks sized 4-5 for two boys who wear shoes that are 3 and 4.5 in US measurements. These socks didn't fit the smaller boy so they certainly wouldn't have fit the older boy. I assume the size is small because of the country of origin.
Pros
Liked
Cons
Limited Style Variety: While the product offers crew, low-cut, and no-show styles, the range of designs and color options is quite limited