If you are self-managing a catalog in Hoops, you may need to add or remove colors & sizes from products as your vendor's catalog updates.
Follow this process to manually update a product. If a large number of products require updates, it may be easier to re-import the new catalog in bulk.
This short video will teach you how to quickly and easily update product variants.
Note: You can only edit products that have been added or imported within your own account. You can not edit managed catalogs that have been shared with you.