Mens Nautica Comfortable Fit Plaid Polar Fleece Thermal Sleepwear / Pajama Pants - Gray Extremely high quality fabric: 100% polar fleece micro-polyester; Machine washable. 100% authentic Nautica merchandise...Very high quality mens sleepwear - satisfaction guaranteed! Two front hand pockets and one rear pocket for storage; Elastic waistband with drawstrings ensures a comfortably snug fit. Legs are cut full and loose, relaxed styling provides a comfortable and casual fit.