How do I add product options in my Wix Online Store?
For items which have multiple options (e.g., color or size), you can add up to two product options from the Wix Store Manager.
To add Product Options: Click your Product Gallery to select it > from the pop-up menu, click Manage Store > click a product to open the Product Details window.
Under Options and Inventory, click the box next to I want to add product options like size and color > click Manage Options > click Add Option > under the relevant option, click Select > edit the options > click Done.
At the moment, you can add up to 2 product options for each product and up to 10 fields under each option. You can vote for adding more Product Options in this FAQ.