Like a wolf in sheep's clothing, the Billabong Men's Furnace Flannel Shirt Jacket disguises its polar fleece fabric as a flannel shirt. Sure, other flannels might feel a tinge of jealousy as this shirt jacket is picked time and time again before heading out the door into drizzly coastal winters. But with the Furnace's water-repellent coating helping to keep you dry and its fabric's mechanical stretch for well-heeled mobility, the other flannels are sure to come around to understanding why the Furnace is just a part of the pack.