3:14 in this video
WARNING: This is an advanced exercise!
If you cannot do at least unbroken 10 Push-Ups, do not even attempt to try the TRX Chest Fly.
If you can, ease your way into it, and prioritize form above all.
Start on the TRX in the top position of a Push-Up and open your arms up to push the handles out to your side, lowering your body toward the ground.
Once you reach the bottom position, use the tension in the TRX to bring your hands together and raise your body back up to the starting position.
You can make the exercise less difficult by walking away from the anchor point so you began in a more upright position, if needed.