Great question.
First and foremost we're a small (but internationally distributed), sock brand who treats custom sock projects as if the end product was our own. The same three designers who create our own brands collection, are the same individuals who will be working on your design. Each design starts from the knitting pattern first. This means we're sending you a mock up that we're certain we can pull off with the knitting machine. We've heard enough stories of clients getting a mock up, only to be disappointed with the finished product because the design has changed so much. We also do not allow the design to be cut off by the heel or toe which is a sure sign of a rushed project. It takes time to figure out the details and do it right.
Our socks are made out of quality cotton (yes it matters), by technicians in Italy who have been making socks for generations. People buy our socks for the design, but they come back for the quality.
We will tell you when something might not be the best idea. You may think having a dense geometric pattern is really what you want, and maybe it is! But we're going to tell you about the amount of cut threads that will be inside the sock, and how that pattern will impact the stretch. Then we'll give you a compromise that balances functionality and design integrity.
In our six years of making custom socks, we have never missed a deadline. If we tell you we can make a deadine, we make it. This means we've turned away business when the risk is too high.
We make suggestions and give you options. You want a white sock? Great, we can do that. Before we go ahead though, check out this very light heathered grey option. It won't show dirt as easily as white.
There are lots of other reasons. Competitive pricing, large and small companies we've worked with, giving back to good causes (over $80k donated in the past two years), etc etc.