So Underworks did a big site redesign and there doesn't appear to be an FTM section anymore, but the sizing on the "compression shirts" in the mens section seems to be the same as ours was. There are a lot of cheap new models out, but I don't trust spandex to give enough compression. Let me know if you guys try out the new ones though!
The item # is the same and you can find all the same stuff. Least the popular ones.
ftm.underworks.com redirects here now:
http://www.f2mbinders.com/
which appears to be them just rebranding the FTM section- I bet they noticed they were making a fair bit of $$ from us
the change freaked me out for a second, but the trusty tri-top is still there, among others:
http://www.f2mbinders.com/binding-tops/tanks/tri-top-chest-binder