How can I manage custom metadata for different shoe size variants?

Hi,

I am looking for help here with custom metadata per variant. Basically I am selling shoes and I don’t have all the time all the sizes of the shoe, so I want to sell other sizes as well via my external partner. So there will be 2 different types of variants and each of these metadata fields will be displayed below sizes:

  1. type of size metadata variant

In stock - Express Delivery

Delivery by: 17/12/2022 example (+ 2days to actual date)

  1. type of size metadata variant

In stock - Standard Delivery

Delivery by: 25/12/2022 example (+ 10days to actual date)

Examples how its shown on different website:

  1. https://prnt.sc/S2i_P-o_hmyU

  2. https://prnt.sc/V572cjvazldz

Thank you all for your help, I would really appreciate it!

My Website: https://sneakerland.sk (main) / https://sneakerland.eu