This is a winter swaddle with a good texture. It says M size. I liked its very good texture and used it for my son, who was born in December, from when he was a newborn, but he has outgrown it, so I am selling it. It has only been used a few times for outings for about 3 months, so it is relatively clean. Please refrain from purchasing if you are concerned about it being stored at home. ●Material: Outer fabric 100% Polyester Lining 100% Polyester