Abstract: A reversible article of swimwear offers two swimsuits in one assembly, with two sides having a single support liner with a double waistband which reverses along with a swim trunk of the assembly. The two sides may have identical appearances, or they may have different appearances, such as a print side as well as a solid side, respectively. The article of swimwear may include functional pockets on one or both sides. The double waistband provides both stability and comfort, and the article of swimwear may be fabricated with appropriate material for use in swimming-related activities, for example, to be waterproof and/or quick-drying.