Medium: Measures US Size 68, Chests/Bust 35-36 inch Large: Measures US Size 8-10, Chests/Bust 37-38 inch X-Large: Measures US Size 12-14, Chests/Bust 39-40 inch XX-Large: Measures US Size 16, Chests/Bust 41-42 inch 3X-Large: Measures US Size 18, Chests/Bust 42-44 inch Hit the sack ...Medium: Measures US Size 68, Chests/Bust 35-36 inch Large: Measures US Size 8-10, Chests/Bust 37-38 inch X-Large: Measures US Size 12-14, Chests/Bust 39-40 inch XX-Large: Measures US Size 16, Chests/Bust 41-42 inch 3X-Large: Measures US Size 18, Chests/Bust 42-44 inch Hit the sack in total comfort with this Soft and lightweight Cotton Flannel Nightgown, Features Round neck, Approximately 38 inch from shoulder to hem, long sleeves, 6 button closure, detailed with lace and Stitching for an extra feminine touch. A comfortable fit perfect for sleeping or lounging around.