Soma Cool Nights Racerback tank top and crop pajama pants pajama set Condition: used Size: Small top and Small bottom Details: Cool Nights fabric is made with lightweight rayon fibers that stay cool to the touch and keep the fabric from sticking to your body. Contoured elastic waistband. Side pockets. Relaxed fit for comfort. Approximate inseam: 4". 93% rayon, 7% spandex. Machine wash. Imported.