If you think building a colossal chest is only possible with gym-based labor, you're wrong.
"You only need two things for growth: mechanical tension and volume," says Ryan Hopkins, certified advanced sports performance coach (USAW) and personal training manager of SoHo Strength Lab.
These exercises and workouts only utilize bodyweight and free weights, but don't underestimate them; you will grow using these. They're variations on pushups and the chest press—two incredible pec builders.
"Because of the lack of big resistance, these exercises place mechanical stress on your chest tissue in those range of motions you typically get with machines," Hopkins explains. "You also do isometric holds, which by nature require a lot of tension to maintain and move in and out of with speed."