This Karen Neuburger long sleeved night shirt is made of 60% cotton & 40% polyester. It is low weigh and so soft and comfortable. The fabric is not see-through which I have seen so much of lately. This night shirt can be washed on gentle cycle in cold water and tumbled dry on the low cycle. It came out  of the dryer without any wrinkles and no shrinkage. I like the long sleeves especially in this Midwest weather so I am comfortable even when it is snowing in April.