We combined two iconic Filson materials to make our warm Flannel-Lined Dry Tin Pants tough enough for any job. The dry finish Tin Cloth stands up to the abrasion of hard work, and they’re lined with the same Alaskan Guide flannel that’s kept sportsmen warm in the field for decades. Heavy-duty reinforced pocket bottoms. Classic 5-pocket design. Zippered fly. Metal shank-button closure.