Core Seamless Bikini Top — Cross-Back Support, Fast-DryThe seamless bikini top engineered to stay on no matter what you're doing in it. Core is a cross back bikini top with the support of a sports bra and the profile of a bikini. No padding, no underwire, no hardware. A seamless band that holds firm and cross back straps that distribute load evenly so nothing digs into your shoulders. It's the outdoor bikini top that works equally well for paddleboarding, hiking to the water, or wearing all day without