I recently got back into working out at the gym and decided to give my EarPods a shot. Although the design is much better than the old Apple Earphones, they still had a tendency to slide out of my ear during cardio and sweaty exercises. My colleague recommended I try these with her, so we purchased them at the same time.
I took them for a spin this evening at the gym, and I was far from disappointed. I am extremely happy with the feel. Unlike most workout earphones, these do not "suction" into your ear to where, if you stopped playing music, you'd feel like you just left a vacuum. Their design allows it to sit snugly inside your ear without any discomfort.