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 9.2-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 long tail for tucking into pants, crew neck top, and knit cuffs. Imported.