100% cotton Full length pajama pant Waist has 1/2 elastic and 1/2 drawstring for the perfect fit every time Machine wash cold; tumble dry low; no bleach Pajama pant is not pre-shrunk and will shrink when washed This women's pajama pant has a roomy, comfortable fit. Most people find our PJ pants to be larger than expected. This allows for a comfy fit and room for expected cotton sleepwear shrinkage, which is approximately 1" in width and length.