A best bet is the
Victoria's Secret Women's Beach Sexy Sara Halter Bikini Top in 10 colors (Black Multi-Stripe pictured) bundled with matching bottoms from $21.98 plus $5.99 for shipping. (Add these items to cart separately to get this price.) That's up to $17 off and the lowest total price we could find. Both top and bottom are available in S to XL. The bottoms are available in five styles (Side Ruched Low-rise Hipkini pictured). Update: It's since sold out.