I purchased this from a Mercari shop, but it didn't arrive in time for when I needed it, so I'm selling it new and unopened. It seems to be made of thin fabric. The following is a quote from the website: Size: M Unisex, windproof and cold-proof ski pants Simple design, easy to match with your jacket. Sizes: M L XL 2XL 3XL Size description: *There may be an error of 1-3cm in the actual size of the size chart depending on the product. Material: Polyester Colors: Black, Beige [Notes] *As this is an imported item, there may be a unique smell of the fabric, slight scratches, or stains. Please understand this before purchasing. *There may be a slight difference in color from the actual product depending on your computer environment. *There may be a slight error in the size notation due to the measurement method.