These socks are durable and wash well.  As other reviewers noted, the sizing can be confusing.  I think the Company should list the shoe size range next to the sock sizes as a guide.  Other than that no complaints.  This is the 2nd time purchasing so my granddaughter has enough for all school week.  She doesn't like to wear tights so she wears these under her uniform pants to keep warmer.  In the spring, she can go back to the uniform jumper and still use these till the weather gets too warm for long socks.