This underwired and lightly padded "My Perfect Shaper" Series by Triumph is engineered with Comfort Wires and Spacer Cup technology for a natural shape. The adjustable straps and back closure settings allow for a comfortable custom fit. LYCRA ensures comfort and the smooth lines create a streamlined look underneath clothing. The bra is composed of 78% Polyamide, 20% Elastane, and 2% Polyester.