Boob sweat. It's a thing. But not anymore (thank god) thanks to the adidas Techfit Sports Bra. The bra features "moisture-management" properties (AKA it makes sweat go away, like, fast) and a mesh back for even more ventilation.
This printed racerback is perfect for running on the treadmill, as the drirelease fabric will keep you dry (AKA no sweat stink) and your gym bag happy.