We haven't yet opened the customization window for the Winter CAUSEBOX. If you are a new or existing Annual Member, you will receive an email with instructions to customize your Winter Box as soon as the window for customization opens.
We expect to open up the Custom feature towards the end of November. Don't worry, you will have plenty of time to make your selections before your Winter Box ships!
If you need more clarification on how to make and save your selections, check out these FAQs: