Loose fitting men's pajamas for warm weather.  The men's medium translates to about a 10-12 in women's...at least in these pajamas.  Easily machine washed and dried.  Flat buttons won't irritate or get in the way.  Elastic waist on the shorts keeps them comfortable and easy to wear.  I'm keeping these..will have to buy another set for the guys in the house.  They are a 55% cotton 45% polyester blend and so very little shrinkage or wrinkling straight out of the dryer. Inexpensive and comfortable.