Vintage Harlem Shorts

Vintage Harlem Shorts NWT's Stretch, these have 2 conflicting sizes👉one says a Size: 5 and the inside tag is a Size: 9. I did try them on, I am a 26/27 & these are a Size: 5. They are not a Size : 4 but since there is no selection for a Size: 5 I went with the lower size Dark Wash with Purple & Fuchsia