I couldn`t begin to post that here, with over 1400 entries on my website (http://www.fashion-incubator.com) I wouldn`t know where to start. It`s probably better to read up and then ask questions from there. We also have a forum for more targeted (privlidged) information on this topic but I hesitate to mention that as it`s not public and only open to members. Not that it`s hard to join, just that it`s not public for legal reasons. In any event, there`s plenty content that`s accessible and free. I`d suggest starting with some of these:
If you read the one below, be sure to read the three above this.
And like I said, there`s info on our forum on this topic I can`t publish publicly. Basically more of the downsides of selling to big box retailers. Lastly, I`d be remiss if I failed to mention the book I wrote about how to navigate these waters. It`s _The Entrepreneur`s Guide to Sewn Product Manufacturing_.