Whether or not you’re new to ordering or wearing a custom hair replacement system, there are a lot of nuances to consider with sizing and designing a custom system. Do you need to know all this information? Certainly not. That’s why we recommend you get started with Gather®, our personalized pre-consultation tool. But if your goal is to be an educated consumer and understand why certain decision are made, this section will help you make sense of the many details that go into ordering and designing your custom hair system, and give you a place to go if you’re struggling with a particular size or specification issue, like density, length, color, or wave/curl.