These Jersey Jogger Pajama Pants from Auden? make a cozy addition to your bedtime routine. Made from rayon-recycled polyester blend jersey fabric with added spandex, these solid-color pajama pants provide a comfortable fit that moves with you. The full elastic waistband with a drawstring offers a snug, adjustable fit, while the elastic-cinched ankles help keep the legs in place. These jogger pajama pants have HeiQ Smart Temp mimics our body?s natural ability to regulate body heat. Triggered by rising body temperature and moisture, the vaporizing energy action pushes away sweat together with heat to achieve a cooling effect. This effect is deactivated once cooling is complete or when there is a sudden drop in surrounding temperature. Therefore, helps to avoid the discomfort feeling chilly. Auden?: Comfort true to every shape & hue.