Ruched maxi dresses most commonly appear in polyester, lace, and a rayon-nylon blend (often listed as 90% rayon, 10% nylon).
Many are pull-on/pullover styles with built-in stretch. Common features include smocked or elasticized bodices, ruched chests, and general pull-on construction for an easy, flexible fit.
Listed total garment lengths include 50 inches, 51 inches, 52 inches, and 58 inches (lengths vary by listing).
Care instructions vary by listing. The most common guidance is machine wash with line dry or lay flat to dry. Some listings specify machine wash without drying details, a few allow tumble drying, and several provide no washing/drying instructions.
Listings explicitly use the terms "Lightweight Fabric" and "Midweight Fabric" to describe fabric weight.