I own this crop top and I love wearing it for running, HIIT, and dance classes. It doesn’t roll up when I’m moving, it’s super breathable, and it’s not too tight on my chest.
Promising review: “I love this shirt. I’ve been taking fitness more seriously the last few months and finally got around to replacing all of my old activewear. It’s just loose enough that I don’t have to adjust it while I’m working out and also provides nice cleavage coverage. It’s extremely soft and has good-sized arm holes. The navy color is deep and beautiful.” —Edith Harmony
Get it from Amazon for $12.99+ (available in sizes XS—XL and in 17 colors).