Winter technical socks made of Polypropylene, an innovative fabric that guarantees truly unique performance, especially in terms of heat and breathability, ideal for mountain lovers and winter sports. Thanks to the particular characteristics of their fabrics, polypropylene products are similar to wool in terms of their ability to retain body heat, resulting, however, absolutely soft, light (specific weight 10 times lower than that of wool), comfortable and breathable. What's more, the polypropylene fabric dries very quickly, it is practically impermeable to dirt (polypropylene does not chemically bond with any alkali base), it is easy to wash even at low temperatures and can not be attacked by mold and bacteria . Hypoallergenic and stable in the colors, the polypropylene is also very resistant to wear and rubbing, it does not involve problems of â € œpillingâ € - the annoying formation of â € œwoven ballsâ € - and does not need to be ironed.