Sleeve Length...Long sleeve Sleeve Length...Short sleeve Season...Summer This is a size LL. This is a maternity pajama purchased from Nishimatsuya. I bought several because they were very comfortable to wear, but I have some that I haven't used, so I'm selling them. Before childbirth, you can wear them comfortably because you can adjust the elastic waistband even as your belly grows. After childbirth, it has a nursing opening, so you can use it after giving birth. The soft rayon material felt good against the skin. This material wrinkles easily, but it has wrinkles because it was stored in a drawer. I think you will wash it after you buy it, so I hope those who don't mind will purchase it. It's best not to put it in the dryer because it will wrinkle. #Maternity #Maternity Pajamas #Nursing Opening