Most adult pineapple costumes are made from 100% polyester. Some styles add stretch components or decorative accents, for example a spandex top or sequined trim, but polyester is the predominant textile listed.
Most listings are single-piece—typically a dress or bodysuit. A few options are multi-piece sets, for example a tunic paired with a matching hat.
Commonly they use zipper closures (step-in or back zips) for entry. Some styles also include fit features such as silicone tape at the bust to help keep the top in place.
Design features that create a sparkly, tropical look include sequins and glitz elements, foam-backed stretch sequins on leaf details, yellow-and-black sequin patterns, and colorful piñata-style prints. Some costumes layer sequins over a green spandex top for added shine and shape.
Some dresses include silicone elastic tape along the top bust line to help the costume stay secure on the chest.