Island formal is a dress code that is typically associated with events or occasions in tropical, island settings, or resorts by the sea. It strikes a balance between formality and the relaxed, laid-back atmosphere often found in island destinations. Island formal attire is meant to be comfortable for warm weather while still maintaining a sense of style and appropriateness for special occasions. A knee-length or tea-length sundress in light, breathable fabric like silk or linen; or a crop top with full skirt and sandals (can be strappy and high heel, but you might prefer precious flat sandals or embellished slides for the formal event on the beach) are the best choices for women.