Lightweight Modal Stretch Fabric Silky soft, naturally breathable with a luxurious feel for your best night’s sleep. Super Soft - No, really. You have to feel it to believe it. Won't Stretch Out - Keeps its shape, no diaper butt. Non-Pilling - No lint balls or fuzz, wash after wash. Fade-Free - Looks newer for longer. Additional Features Refined & Modern - Straight leg fit from hips to ankle. Two Side Pockets - For your smartphone or midnight snacks. Stay-Put Waistband - Won’t roll, bunch, pinch or leave marks. Tagless Label - Enhanced comfort, we really thought of everything.