Under Armour Women's Armour Crossback Embossed Elastic Sports Bra 90% Polyester/10% Elastane Imported Best for A to C cups Built for Mid-Impact support so you can stay fit & focused Crossover straps with feminine keyhole detail Signature jacquard elastic band delivers a soft, stay-put fit Super-smooth, double-layer HeatGear fabric delivers superior next-to-skin feel