100% Cotton Drawstring Waist closure Machine Wash 100% Cotton soft flannel fabric is strong and durable to ensure you feel comfortable and get a great nights sleep Elastic waist has a drawcord to adjust the fit. Make sure these pants don't sag down by tying the drawstrings for a more personalized fit that's just right for you Weve used the best materials we could find and pieced them together with superb stitching, creating men's sleepwear that offers total durability and holds up well in the wash without shrinking or running color These pajama pants have a button fly and 31.5" inseam and are a comfortable tagless designv Washer and dryer safe! You can machine wash our products on cold with like colors. For a long lasting product, only use non-chlorine bleach when needed and can be dried in a dryer. We suggest hang drying our products to keep the fit as new as possible.