Bras shouldn't be complicated. They should be comfortable and they should be supportive. So we went straight to the source and asked real women how to make their favorite UA bra even better. And it worked. Delivers strategic support, tailored for medium-support activities like cycling, weight training & boxing. Soft, quick-drying cups provide extra structure & coverage with perforations for added breathability.Compression: Ultra-tight, second-skin fit. Removable cups have helpful R & L arrows to easily put back in. Crossover straps with updated keyhole detail for easier on/off. Updated interior construction helps keep pads in place—during wear & wash. Elastic band feels super-smooth & soft. Super-smooth, double-layer fabric delivers superior next-to-skin feel. Material wicks sweat & dries really fast & light. 87% Polyester/13% Elastane.