Print the Printful variant_id on my product page?

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Each product in printful has a Variant ID, for example their all over print sweater I think has the variant_id "10ITWC" and then the size follows after that like 10ITWC-XS, 10ITWC-L and so on. 


I guess that this variant_id is saved on Shopify somewhere when i push the printful product to shopify?


Can I for example on my product page somehow access and print this id through liquid, kind of like this? 


{{ product.printful_variants_id }}       


(Of course with another code, but what would that code be?)


Would appreciate the help so much, it is the last part of a bigger thing I am trying to automate.