Our Devil Track Hoodie is made from Polartec® Wind Pro®, a midweight, tight-knit, durable polyester fleece that is quite resistant to air infiltration and is treated with a DWR finish to provide water resistance. This material provides excellent warmth in windy conditions while still allowing moisture to escape and has a soft inside and outside finish that is comfortable against the skin. It makes a great mid or outer layer in nasty conditions.