Pants NWOT Linen/Cotton drawstring Rope pants

NWOT cotton linen with Rope drawstring elastic waistband 15, to 19 inches across when stretching out. petite small linen cotton runs more like a medium to regular. see measurements in photos please. I wear a medium and I am 5'7 these fit me like M, not sure why they are marked petite small? also available in Black and Yellow each sold separately