Size is either a 4 or 6, I just can’t find a size dot or number anywhere. I’m a size 6 and it fits me comfortably fitted. Small little color/stain spec on the front. I haven’t tried to get it out, but I’m sure it will. Lululemon Swiftly Tech Racerback tank Size 6 (I think!) Inside the bottom hem is printed “Sweat Life” on one side and “I Run For Cheese” on the other side.