D&P Men's Premium Cotton Lounge Sleep Pants Fabric compositionCotton Machine washable Adjustable fabric drawcord for custom Comfort flex waistband Attention: Please choose the most appropriate size according to your actual figure. Size M is 28-29 inches, Size L is 29-30 inches, Size XL is 30-31 inches, Size XXL is 31-32 inches (The Waist).