The Under Armour Seamless Solid Bra is built for low-impact activity and all-day comfort. Soft, seamless 93% polyester, 7% elastane fabric feels ultra-smooth and comfortable. The Signature Moisture Transport System wicks away sweat to keep you cool, dry, and light. Strategic power-rib support provides extra stability where you need it most. Slim, adjustable elastic straps in a modified racerback design offers increased range of motion. Compression fit. Imported.