Lightweight down pants. While it varies from person to person, I was able to spend winter mountain tent stays in the dead of winter with tights and these down pants. Features: Pockets on both sides, and one on the back. The lining is treated with Workman's Thermo Assist, a heat-retention treatment. This is a Workman product. Product number: HD005 - Color: Black - Waist: Elastic waist - Material: Lightweight material - Uses: For outdoor activities and mountain climbing Thank you for viewing. Size: M