I bought this last year and wore it a few times. The size is M-L. When fully extended, it reaches up to the chest area. It's thin, so you can wear it even in the summer. Please refrain from purchasing if you are sensitive to items stored at home. These comfortable, non-seam pants with a ribbed material and a built-in belly band are made with stretchy fabric. The long length allows for versatile styling with the option to fold them over! Wear them single-layered for a longer length, or double-layered to protect your precious belly from the cold. The material has a moderate thickness, so you can wear it throughout the year. Adding an extra layer provides peace of mind when you go out. These comfortable pants can be used for a long time, both before and after pregnancy. Material: 62% Polyester, 33% Cotton, 5% Polyurethane