Athleta 2-in-1 Ultimate Support Tank Top in Black - it's a size XS and is NWT.

Relaxed with room to move
Made for A-C cups and medium-impact workouts with a mid-coverage neckline
FOR: Medium to high impact workouts at the gym, studio or outdoors
FEEL: SuperSonic fabric is sleek with supportive compression
FAVE: Sleek, functional free-cut edges are chafe-free
Nylon/Lycra
WICKING. Pulls sweat away from the body to the surface of the fabric so it can evaporate faster
RATED UPF 50+ (Excellent Protection)
QUICK-DRYING. Dries in a flash for ultimate comfort when breaking a sweat
#531149
73% Nylon, 27% Spandex

#181