Denim is the standard clothing worn by those who really know the meaning of the term "roughing it." And our Roughneck™ Jacket is no exception. It offers the heavy-weight durability required to stand up to years of the roughest jobs while delivering a relaxed fit for comfort and exceptional freedom of movement. Plus, it's unlined, so it's ideal by itself in warmer weather or layered beneath when the temperatures drop. Denim collar. Imported.