Cobalt Tie-Back Bikini Top by NorcaCobalt Tie Back Bikini Top by Norca Made to Move With You The Cobalt Tie Back Bikini Top by Norca isnt just swimwearits gear. Designed for athletes who refuse compromise, it combines locked in support with a fully adjustable tie back fit. From endless training laps to ocean sprints to high intensity beach days, Cobalt moves with you, stays put, and stands up to whatever you put it through. Key Features & Benefits: Adjustable Tie Back Fit : Customize