Runs slightly large — we recommend sizing down for a more supportive fit. The Ariel underwire bikini top features ruched cups detail and elastic ruched straps. The ruching detail on the straps adds texture, and creates a flattering look. Made from a soft shiny finish fabrication, which gives it a luxurious and sleek appearance and provides a comfortable and smooth feel. Designed for a natural silhouette rather than heavy lift. The bikini top is double layered, adding durability to the garment ensuring that the top is not see-through when wet. Fit: This underwire style has a slightly more relaxed fit through the band and cup. If you are between sizes or prefer a more supportive, snug fit, we recommend sizing down. Shell and lining: 80% nylon, 20% spandex. Care Instructions: Hand wash, do not iron, do not bleach, do not tumble dry, dry in the shade, avoid rough surfaces.