Boost Level 4 - This ultimate push-up bra with a plunging center provides an extreme lift for your boldest look ever. Front closure. Lace wings and racerback. Built-in underwire. Adjustable straps. Three hook-eye closures in the back. Elasticized trim. Partially lined. DETAILS: 90% polyester, 10% spandex. Hand wash, line dry. Imported.