Material: Polyester.Premium fabric is not only soft and comfortable, but also breathable, suitable for Winter Perfectly tailored to shirt tops, sweaters, winter coats, etc.It is an essential item in your wardrobe Great for casual, home, leisure, street or outdoor activities like running, jogging, etc High elastic waistband, close-fitting, warm-keeping even in winter below -40℃ for Ultra soft fleece lined leggings can keep you warm and cozy in cold winter, thicken and heavy