I have product table and produk variant

But I want that product variant has other options again

This is my product,

I have a custom cloth that has types of collars , cuff, pocket, plackets, fabric

But that collars and those parts have somes type again, it is called contrast and piping

And then the contrast and piping should choose which fabric they want

Currently I was thinking about the

Collar is a product and has variant contrast and piping

And then when user choose fabric of contrast and piping
I get data of product fabric

Here is my design

Product:

• id
• name
• category ( item or custom )
• price

Product Variant:

• id
• product is
• name
• price

How I can belongs the fabric I to the product variant correctly? Because each fabric has own price for the product collars, placket, pocket

I was thinking about to count them easier in query for tracking the top product of collar, pocket, cuff for product category custom