Winter mountaineering bottoms suitable for activities from climbing to snowshoeing. Stretchable GORE-TEX(R) (2-layer) material stretches with your leg movements. Easy to move in and reduces fatigue. Size standard: Japanese size. Domestic genuine product. Materials: <Face> Nylon Spun GORE-TEX(R) high breathability (2-layer) (Face: 100% nylon, Back: Fluorocarbon coating) x 70D Stretchable GORE-TEX(R) high breathability (2-layer) (Face: 100% nylon, Back: Fluorocarbon coating) <Lining> Nylon taffeta (100% nylon) Size: L Weight: Approximately 630g The above is a copy. Used several times in the mountains. There is no feeling of use, and I think it is in good condition, but there may be overlooked dirt or fraying. The zippers are in good working order. I think the waterproof function has deteriorated. Features: GORE-TEX