The most comfortable and stylish bra that you'll reach for daily.Curvy kate lingerie luxe biscotti strapless bra. Foam lining.4 hook and eye fastenings on back band. Inside sling support. Fully adjustable non-slip straps. Hook and clasp change from 2 to 3 hooks at an F cup. 66% Nylon 22% Polyester 12% Elastane.