Trinity and Laurie are wearing a size small.

Measurements:

Body Length: 23 inches | Sleeve: 19.5 inches

Small: Bust: 40 inches Arm: 16 inches

Medium: Bust: 42 inches Arm: 16.5 inches

Large: Bust: 44 inches Arm: 17 inches

Bottom Measurements:

Rise: 10 inches | Inseam: 25.5 inches

Small: Waist: 26 inches

Medium: Waist: 28 inches

Large: Waist: 30 inches

Christmas Season Satin Pajama Set