The cable low fly, often called the low-to-high cable fly, is performed with the pulleys set at the bottom of the cable stack, sweeping the handles upward and together. The upward arc biases the upper and inner region of the pectorals while the cables keep tension on the chest through the entire path, including the squeezed top position where dumbbells go slack. It works well as a finisher or as an upper chest accessory that is gentle on the shoulders.
Log your cable low fly sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.