SATIN MATERIAL:This silk pajama set is made of soft,smooth,lightweight,breathable and skin-friendly fabric,allowing you to sleep comfort at night.Recommended to machine wash them in a laundry bag,do not bleach,dry low BUTTON DOWN PAJAMAS: Pj top features a notch collar,3/4 short sleeve,v neck and button front design,making it easy to put on and take off. It can be worn as a stylish satin shirt paired with pants or a skirt, or as a jacket over a camisole