How to define if the socks are made with double cylinder sock machine or single sylinder sock machine?

Many people who are deaing with sock business don't know how to recognise if the socks are made by double syclinder knitting machine or single syclinder knitting machine. That's ok! Today you will learn how to do it in 30 second with useing methods below!

1)Tactile sensation

Use your fingers to rub the cuff of the socks, you will find the double cylinder socks have only 1 layer. One the contrary, the single cylinder socks will have layers of 2 on the cuff part.

What if you don't have real socks around you, and you are judging the socks from your potential vendor on the PC screen? So here comes the method 2!

2)Visual sense

If the socks are with a colorful patterns, then you may come to a conclusion that the socks are not made with double cylinder machines because double cylinder machines can not add much too patterns to the socks. Only few classic styled patterns can be used on the socks made by double cylinder machines! Check example below and tell me which one is made by single cylinder machine?