100% Cotton Black Drop Crotch Onesie Jumper labeled size medium

Cool and comfy 100% cotton basic black onesie jumper. Drop crotch designed to be loose fitting. This piece is labeled a medium but I would say it would be a better loose fit on a XS-Petite small. Please check measurements. Pit to pit: 18” Full length with adjustable straps fully lengthened is 53” Inseam from the drop crotch middle is 25” Fun small silver zipper pocket on the back.