stonewashed
adjective uk/ˈstəʊn.wɒʃt/ us/ˈstoʊn.wɑːʃt/
（尤指粗斜纹棉布做的新衣服）石洗的，砂洗的
(of a new piece of clothing, especially one made of denim) washed together with small pieces of stone in order to make it lose some of its colour and look older
stonewashed jeans 石洗牛仔裤