Under Armour Open Back Long Sleeved Heat Gear Shirt

This lightweight long sleeved tee from Under Armour is a ladies large, 21 1/4" inches flat width underarm to underarm. Triangular opening in the back - I guess to show off that fancy expensive sports bra you're working out in? I can't get an accurate color in the pics, but I did get pretty close on the labeled photo. This is kind of a light plum/mauve/purple color. Most of the photos show it grayer than real life. This is a gently used Heat Gear shirt with no damage noted.