Description of Under Armour Core Sport Bra - Women's Under Armour's mission is to provide the world with technically advanced products engineered with our superior fabric construction, exclusive moisture management, and proven innovation. Every Under Armour product is doing something for you; it's making you better. HeatGear® moisture transport and support for A/B athletes in moderate intensity action. Racerback design holds straps in place and a mesh back panel maximizes breathability. Tagless FLATLOCK seamed construction eliminates chafing and ensures comfort. Features: Racerback design holds straps in place and a mesh back panel maximizes breathability. Tagless FLATLOCK seamed construction eliminates chafing and ensures comfort.