Size chart & fit guide Expressiva clothing is sized just like non-nursing clothing in the hip and waist but is one size larger in the bust. Our size: Size equivalent: Bust up to: Waist up to: Hips* up to: XS 4 34" 26" 35" S 6/8 36" 28" 37" M 10/12 38" 30" 39" L 12/14 41" 33" 42" XL/1X 16/18 44" ...