Modest evening wear must adhere to specific structural requirements: high necklines (mandarin or crew), full-length sleeves, and floor-length hemlines. For wholesale orders, verify that the 'no-see-through' guarantee is backed by fabric testing. Pay attention to non-form-fitting silhouettes like A-line or Empire waists, which are highly sought after in Middle Eastern and conservative Western markets. Ensure that any embellishments, such as hand-beading or lace appliqués, are securely attached and do not compromise the integrity of the base fabric.