Polar fabric 100% polyester microfleece fleece both quality Polartherm. Polartherm is a synthetic fabric used in technical garments. Its consistency guarantees the correct ratio 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, half zip in polar fabric that offers a comfortable feel Thanks to its microfibre fabric, it has a pleasant and soft, elastic, breathable and lightweight quality. Polartherm quality: Warm and light fabric, very breathable and quick-drying. It is mainly used as an intermediate layer. Very resistant and durable. Polartherm is an easy-care machine-washable fabric.