These are Stussy Mix Up Cord Beach pants. They are made of corduroy material with different colors on the left and right sides. They have been used to some extent, but there are no noticeable stains. The following is a description from another site: These are new easy pants that cleverly switch between corduroy fabrics of similar colors on the left and right sides! The corduroy fabric is attractive for its sturdy and tough feel, the comfortable fit provided by the elastic waist and drawcord, and the relaxed, loose silhouette is also not to be missed! There are a total of 3 pockets. The waist is equipped with a drawcord.