J Crew  Knit V-Neck Relaxed Fit Tank Sleeveless Top Shell Black Lurex Side Trim
size M -  check measurements for fit  below.

100% Cotton soft lightweight jersey
double side Lurex knit trim stripes
high low hem tunic style
side slit
3/4" knit lurex taping in a tonal lurex look.  subtle and wearable!  Great tank top.
 
Approximate measurements laid flat: 
Underarm to underarm: 18 1/2"
Length (high point shoulder seam to bottom): back 29" , front is 26.5"

see photos
thanks!