Adorable very vintage panties, stretchy and firm fabric, holds everything in:

Check measurements - sizes run small

Size Marked: M
Waist: 22-38"

Size Marked: L
Waist: 24-40"

Size Marked: XL
Waist: 26-42"

For the ideal fit your waist/hips should be somewhere in the middle

of the range not at the beginning or the end.