Shosho Long Sleeve‎ One Piece Romper Sugar Skulls NWT size XL - runs small

This adorable super soft one piece, long sleeve romper by Shosho is black, with a sugar skull print. It is new with tags size XL, based on other posts. It runs small. Please refer to measurements below. The length from shoulder to hem is 34”. Turn width under the arms, across the back is 18”. The sleeve length is 29”. Based on measurements, seems closer to a medium, then an Xl