Make a T and torch the rear delts hands-free.

Keep arms long and squeeze the shoulder blades, don't bend the elbows.
The TRX T Deltoid Fly puts your rear delts under load with nothing but your bodyweight and gravity. Because your arms stay long and sweep out into a T against the pull of the straps, the back of the shoulder has to do the work through its full range instead of letting the elbows and arms take over. It earns its spot as rear delt work you can do anywhere with an anchor point, and the difficulty scales instantly by walking your feet forward or back.
Move your feet. Step them back toward the anchor and stand more upright to make it easier, walk them forward so you lean back further to make it brutal. No pin changes, no plate maths.
The arm path. The T sweeps straight out to the sides and hits the rear delts hardest, the Y reaches overhead, and the W drives bent elbows down by your shoulders. Rotating through all three covers the shoulder from more angles.
Because bending the elbows turns it into a row and steals the work from your rear delts. If you cannot keep your arms long, stand more upright to reduce the load until you can.




