Size Guide This vest is made with cotton. This is a fantastic vest to have and easy to carry. Its features; two inside pockets,, satin lining. Hand sorted natural cotton breathable so you won\'t feel sticky and suffocated while wearing this vest. Material: Cotton Satin Lining Two pockets inner Original YKK zips NOTE: Please choose your size carefully from our size chart before ordering your jacket by ensuring you measure your chest size correctly. The measurement in our size chart is actual body size and NOT the jacket size. This will save you and Feather Skin the time and hassle if you receive the wrong size jacket.