Savannahis wearing a size large for length (shes 58) but she would wear the size medium (normally a 28ish in bottoms

hayden (last pic) is wearing the size small (normally a 26ish)

details:

BUTTON-UP LINEN ROMPER - FUNCTIONAL BUTTONS - SIDE POCKETS AND LINED Small: Inseam length - 2 3/4". SELF: 70% VISCOSE, 30% LINEN LINING: 100% RAYON