Beach Club Slimming Halter Tankini Swim Top Strut the beach in style with this wireless triangle tankini that whittles the waist and flattens your tummy with shirred sides and a flattering fit. Made of nylon, elastane and Lycra spandex. Contour wireless bra has light, built-in padding for an even, smooth, rounded shape. Outer cup has gathers to flatter the bust. Front powermesh lining slims the waist and flattens the tummy. Wide stretch halter straps tie behind neck. Pullover styling.