Ashland Sales and Service Co. quilted field trouser liners designed for cold weather environments. These olive drab military-issue liners feature a durable ripstop nylon outershell with warm polyester batting and a classic onion-quilted pattern. Built with side button openings for easy removal and compatibility with standard field trousers, they offer significant insulation. The visible fraying and wear at the crotch seam add a desirable authentic, distressed vintage character to this functional piece of surplus gear.