Vintage stripes dress with button detail M

I bought it at an estate sale thinking I'd look super cute in a vintage dress-- the tag even says it's a size 11/12! Just my size! Then I got home and tried it on, and remembered that size standards are a total joke in women's fashion, and thus my 2018 size 12 butt cannot fit where a 1970s size 12 butt once did. SO, this dress fits a 2018 size 10. I've included a (unoriginal) belt! Buy it for your 2018 butt and then laugh as you pass it on to your kid, knowing that this will be a size 6 in 2042.