Refreshingly simple, Fantasies Seamless Smoothing Balconette Bra is the perfect choice under all your tops. This uncomplicated bra with smooth, seamless cups is a must-have for women who want superior comfort and a great fit. Seamless, unlined underwire bra Cups constructed with simplex fabric to provide a firm, supportive fit Semi-sheer, stretch nylon cups Smooth, comfortable stretch wings Fully adjustable stretch straps 2 row hook and eye back closure Matching Smoothing Hi-Cut Brief FL4518 UK Sizes. Use our sizing chart to find your UK equivalent size.