REI Aruba Tunic
Here's what other sites are saying:
The REI Aruba Tunic does double duty as a swimsuit cover-up or a top worn with your skinny jeans and shorts. Comfortable silky-feeling fabric wicks moisture off skin and minimizes drying time; the stretch is just right to support and flatter. Fabric provides UPF 50+ sun protection, shielding skin from harmful ultraviolet rays. Open armholes allow ventilation on hot days; adjustable shoulder ties personalize the fit. Elastic at waist provides a secure, comfortable fit. REI Aruba Tunic has a just-right, slightly off-the-body fit.