Filson long johns are cut for comfort, and machine washable for convenience. Knit from extremely fine fibers that result in a smooth finish from the yarn's tight "worsted" twist for unparalleled comfort that lasts. The 21-oz. 100% virgin Merino Wool absorbs up to 30% of its own weight in moisture without feeling damp or clammy, and helps neutralize odor too. Smooth fit for layering yet cut generously enough for ease of movement. Features include a hemmed tail for a finished appearance, mock turtle neck collar with half zipper closure and knit cuffs. Extra long cut. Imported.