I used these for five days during a trip to Alaska at the end of December. I didn't use them for activities, and I wore them over leggings and sweatpants, so they're practically in new condition, but please refrain from purchasing if you are concerned. These are cold-weather pants suitable for outdoor work in the dead of winter, winter bird watching, and other low-activity pursuits in cold conditions. They use fabric with excellent abrasion and tear resistance and are water-repellent, making it difficult for snow to stick and easily repelling light rain. The high-quality 800 fill power EX down is generously packed in a three-layer construction, providing high insulation to withstand the harsh cold of midwinter. Comes with removable suspenders. 【Materials】 Outer: 70-denier full dull spun-like nylon taslan [water-repellent finish] Lining: 20-denier Ballistic® nylon taffeta [anti-static finish] Insulation: 800 fill power EX down 【Average Weight】627g 【Color】Black (BK) 【Size】M (Unisex) 【Features】Three-layer construction / Downproof treatment / Removable suspenders / Articulated knees / 3 zippered pockets (2 waist, 1 hip)