I am a 13 year old transgender teen.
For THREE years I have been looking for a binding method that works. I am a Double-D and NOTHING has worked! Then I found this tutorial on youtube: [link]
I tried it out, I put 2 sports bras on backwards (a little trick I learned) and then my homemade binder and I looked in the mirror.
I CRIED of joy, tears came to my eye. I was finally flat. I was actually crying of joy in this picture XD. It was THE HAPPIEST moment of my life. I want to thank newnewenglishman (the maker of the video).
I haven't been this happy in a very long time.