Cotton Fabric: The nightshirt for men is made of 100% cotton fabric, lightweight and breathable, great for sleepwear Perfect For Summer: The men's sleep shirt features short sleeves and knee length to keep you cool Piping Details: Piping on notch collar, chest pocket and button-front placket for a good look Side Pockets: Two handy side-seam pockets for storing items Washing Instructions: Machine wash in cold water, do not bleach, iron low heat, do not tumble dry, do not dryclean