Underworks. Get the size they recommend on their size chart and you'll be compressed AND still able to take deep breaths and do rigorous exercise. The trip top is pretty good, I'd also recommend the Double Front Compression shirt, just step into the bottom, pull it up over your chest to your arm pits, then pull the top up, put you arms through and you have a doubled over binder that's providing you with 4x compression AND you can still breathe. No reason binding has to be painful, just make sure you get the size that will FIT you, don't get a size smaller for extra compression, you'll just be uncomfortable and miserable.