Shop Men's at RalphLauren.com, the Official Site of Ralph Lauren. Striped Boxer Brief - This essential striped boxer brief is crafted from ultra-soft stretch-cotton jersey and features our signature embroidered pony. Signature elasticized "Polo Ralph Lauren" waistband. Our signature embroidered pony accents the left hem. 96% cotton. 4% spandex. Machine washable. Imported.