Today'a dress is an old Target x Rixo collab from 2021 but I found a few on eBay. You may also want to check other resell apps.
For price reference I bought this dress at retail for $45 in 2021. It has functional pockets and requires a slip skirt/shorts since it's not lined.
I took size XS and the skirt portion is 19" and I linked to the 16" slip skirt I have. I'm 5' 2.5" and currently 113 pounds.