Even out your chest one arm at a time.

Keep that elbow bend fixed and resist twisting toward the band.
The Loop Band Single-Arm Fly is a Chest-first movement, with Shoulders working as the supporting cast. Track it consistently and you'll see exactly how it feeds your chest volume for the week.
The Loop Band Single-Arm Fly primarily works the Chest with Shoulders assisting.
Shorten the range or use an easier variation, and stop 1 to 2 reps before failure. Reps build fast when you train just shy of your limit.
Yes, it's a unilateral movement. Start with your weaker side and match the reps with your stronger side so no side gets ahead.




