Polar fabric 100% polyester microfleece fleece both quality Polartherm. Polartherm is a synthetic fabric used in technical garments. Its consistency guarantees the correct proportion between the degree of heat retention and physical activity. It is light and elastic, it can be machine washed without losing its properties. Second layer, open in polar fabric that offers a comfortable heat sensation Thanks to its microfiber fabric, it has a pleasant and soft, elastic, breathable and light touch.