The Heavyweight Flannel is a rugged, 9 oz cotton staple engineered for industrial strength and cold-weather protection. Featuring an acid-washed vintage look and a brushed, ultra-soft finish, this pre-shrunk unisex shirt offers lived-in comfort without sacrificing durability. Its thick, weighted construction and reliable fit make it a versatile piece of gear that performs whether worn on its own or layered for the daily grind.