has a flexible waistband

This Under Armour Jacquard bra is ideal for gym training or running. Perfect for medium intensity activities, this bra has an elastic strap which provides comfort. The straps cross in the back to provide freedom of movement. It also adapts to you for more comfort.
Features:

• Compression: Ultra-tight, second skin fit
• Best for A to C cups
• Delivers strategic support, tailored for medium-impact activities like cycling, weight training & boxing
• 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
• Material wicks sweat & dries really fast
• Four-way stretch construction moves better in every direction
• Double-lined for coverage, no padding
• 90% Polyester/10% Elastane

provides targeted support for lower torso