The secret to warmth lies in the gold-colored lining! Comfortable pants to brave the cold. These warm pants utilize durable, rugged-looking stretch ripstop material. In addition to thin padding, the thermal reflective insulation "Omni-Heat Infinity" reflects body heat to keep you warm, making them ideal for outdoor scenes in harsh cold weather. They also feature the water-repellent function "Omni-Shield" and the UV-cut function "Omni-Shade." The tapered silhouette, which gently narrows from a relaxed waist to the hem, provides a smart and comfortable fit. These warm pants are useful not only for outdoor activities but also for travel and everyday wear. Only worn once on a trip to observe the aurora borealis in the Arctic, so there are no stains. Size S, but it's a unisex size, so women can wear them over regular pants like jeans. Men's sizes are also available. Sets are also available. Thank you.