This dress requires no complex setup; simply wear it. It is designed for Womens Regular fit and is True to size, so select your usual UK dress size. Made from 100% Polyester for both the outer fabric and lining, it is a woven garment. To ensure longevity and maintain the delicate sequin trim, follow these care instructions: - Machine Washable: Use a gentle cycle with cold water. - Avoid harsh detergents or bleach. - Lay flat or hang to dry to preserve the fabric's floaty quality and prevent damage to sequins. - If ironing is needed, use a low heat setting and iron inside out or with a pressing cloth, avoiding direct contact with sequins. This will help maintain the dress's sophisticated appearance for many special occasions.