Abstract: An interchangeable and adjustable bikini attachment and closure system that hides from view undesirable mechanical elements of bikini and bra-like articles of apparel, reduces material and garment waste, and provides a versatile, cost-effective solution for creating multiple swimwear “looks” without purchasing full sets or pieces of swimwear each season. The modular swimwear system uses novel closure and attachment mechanisms in the form of unique connector elements for both bikini tops and bikini bottoms to accomplish its interchangeable and versatile features.