Mock-ups are today an integral part of each product. In sock industry, if you have no your own mockups, and you need to make a photo for each socks separate, that is a very terrible things.
You will lost much time for it. With mockup, you can do it in few minutes and just put design on mockup. In a few minutes, you are on the top. You can save time and get much better preview.
I could make mockup just onece time for you and that is it. If you want to I work on it, that is also not a problem. Contact me to make a deal about everything.