The Polaris by Erreà thermal shirt is part of the 3D Wear Performance line. This long-sleeve crew-neck undershirt is perfect for any sport thanks to the highly technical fabrics it is made of, which have been specifically conceived to provide support and protection in all conditions. The special knitted tubular fabric technology used to make this garment reduces seams to a minimum, to provide the greatest comfort and fitting. This fabric is highly breathable and has an athletic design with an ergonomic fit. Polaris is a short-sleeve thermal shirt, available in 9 different shades to suit your taste. This crew-neck model, suitable for both boys or girls, is the ideal solution for winter time use: thanks to the technology employed to produce it, this garment allows sweat to evaporate, keeping your skin fresh and dry. It also protects against cold, thus stabilizing your body temperature. To improve the garment breathability and to ensure optimal garment ventilation, a large Erreà logo on openwork fabric has been added to the front and back.