Size Chart:(Product Measurement)
1XL:Bust:44.1IN,Underbust:26.0-44.9IN
2XL:Bust:46.5IN,Underbust:28.3-47.2IN
3XL:Bust:48.8IN,Underbust:30.7-49.6IN
4XL:Bust:51.2IN,Underbust:33.1-52.0IN
This data was obtained from manually measuring the product, it may be off by 1-2 IN