Ombre, satin, brocade, cotton, poly, and more can be found on the site starting at around $50, and moving upwards to around $250 or more.
While not purely strapless, you should still check out Lord & Taylor and the La Blanca "Hola Ombre" Bandeau Halter Tankini top, in tropical pink and orange with a center wooden ring and brown halter strap that ties around the neck.
You can accessorize your look with a stylish canvas hobo bag, an imported ombre scarf, or a braided leather bracelet.