Smooth is s securest strapless shape yet, featuring innovative features such as slide and lock hooks and flexi-bones. This underwired strapless bra features newly developed foam moulded cup with matte simplex overlay, gives firm support. Cup shape has been specially developed to give a forward and rounded cup shape, without digging in at the neckline. Cups have a sweetheart neckline, dipping at the centre front for a flattering shape. Removable mutliway straps feature a specially developed slide and lock hook, which keep straps securely in place. New flexi-bones at the back support without digging in, flipping or rolling. Elastic at the top of back and underband feature patented Stay4Sure silicone coating, which helps prevent slipping, and is kind to the skin. The cup has two strap connecting locations to allow a choice of wearing position. Three or four rows of wider spaced hook and eye, dependant on size. 37% Nylon/Polyamide, 25% Elastane, 38% Polyester.