I love these socks for my 5 year old son who loves to get dirty outside.  I wash all my whites with bleach and these socks withstand wash after wash and still look good.  Even washing with bleach the elastic holds up and the cotton stays strong.  My son is very tough on clothes so I usually replace things every few months and that is another reason why I like these socks--the price!  They are very reasonably priced.