Designed for Transgender, FTM, Tomboys, Ts, Lesbians, or stage show supply.nMake chest flat and become cool.nMake sure you have checked the following size chart in the product description before purchasing.Please order it according your chest measurement.Besides, for items that are of a Slim-and-fit style, the actual size is likely to be tighter than the standard size.nMaterial:100%NylonnAny question, drop us a line and we will try our best to help. Please kindly do not leave any neutral or negative feedback before contacting us. Thank you.nSize XS Chest: fit up to 31.1inch;Under bust girth:fit up to 26.7inch; Size S Chest: 31.1-33.8inch;Under bust girth:26.7-29.5inch; Size M Chest:33.8-36.2inch;Under bust girth:29.5-31.4inch; Size L Chest: 36.2-38.5inch;Under bust girth:31.4-33.4inch; Size XL Chest: 38.5-40.9inch;Under bust girth:33.4-35.4inch; Size XXL Chest: 40.9-43.3inch;Under bust girth:35.4-37.4inch. Size XXXL Chest: 43.3-45.6inch;Under bust girth:37.4-39.4inch