Womens Loung Warm & Comfortable Sleepwear Pajama Pants Trousers - Dark Blue Extremely high quality fabric: 100% Fleece Polyster; Machine washable. Fabric covered elastic waistband with drawstrings for added comfort. Functional open fly for convinence.Please browse the size chart for detail. Relaxed styling provides a comfortable and casual fit. Features printing is allover the pants for Casual look.