Important note to select correct size. Please select 6 to 8 inch bigger chest size than your actual/natural chest size for exact/perfect fitting. For example if your natural/actual chest is 35 to 36 inch you should select size "2xs" from our size chart which chest size is: 43 inches, second example if your natural/actual chest is: 42 to 43 inch then you should select size: "large" from our size chart which chest size is: 51 inch, same method customers can use for other sizes. Customers can ask us for help to select the correct size if there is any confusion. Please check the listing image.This item is made of genuine leather and ykk zipper.