Shape up your sleep style. our Soma Intimates exclusive Cool Nights® pajama shorts have a smocked waist that cinches your shape beautifully. A drawstring lets you customize it to the perfect, comfortable fit. Made of soft Cool Nights® fabric, these shorts stay cool to the touch, so you get a great night's sleep. DetailsCool Nights® fabric is made with lightweight rayon fibers that stay cool to the touch and keep the fabric from sticking to your body.Drawstring waist.4" inseam.Side seam pockets.93% rayon, 7% spandex. Machine wash. Imported.