The Socks (I bought the short ones)seem to bee very sturdy I’ve been wearing them for a month or so. Very soft and comfy. I wear a 12 normally but it depends on the shoe some go up to 13 w. But I ordered the larges because the site said up to 12 is a large. They were to small. I messaged the company and the sent me a new pack of socks and a return label right away. No hassle. That was awesome. These Socks are stretchy but not stretchy like some Sox. I recommend if your close on the size go up. The price was pretty good comparable to the other wool socks I buy. Overall I really like them and will buy again. Now we will see how long they last. They do have a lifetime replacement.