Most styles offer light to medium support suitable for B to C cups through integrated shelf bras or foam padding. Those with larger busts may prefer wearing their own strapless bra underneath, as the built-in support varies by dress style.
Yes, eliminating visible strap lines is the main advantage of these dresses. The integrated support creates a smooth, seamless silhouette from every angle without the need for additional undergarments or worrying about straps slipping during all-day wear.
Most are machine washable in cold water on a gentle cycle. Turning the dress inside out and using a lingerie bag protects the integrated padding, and hanging to dry rather than machine drying preserves the built-in support structure.