The Women's Patagonia Reversible Seaglass Bay Bikini Top is formfitting and made with soft, durable, and stretchy outer fabric consisting of either 83% recycled polyester and 17% spandex printed jersey or 80% recycled nylon and 20% spandex solid jacquard, while the reversible side features 83% recycled nylon and 17% spandex solid jersey. Designed with an elegant and minimal strap layout, this bikini top provides comfortable support while reducing pressure on the neck, offering both performance and style for water activities or relaxing by the shore.