Gyms serving Lehigh Valley. Rated 5/5 (3 reviews). From their website: F3 is a national grassroots movement of free men’s workouts with the mission of reinvigorating men as leaders in their community. Services offered: F3 is a national grassroots movement of free men’s workouts with the mission of reinvigorating men as leaders in their community. F3 Lehigh Valley exists to serve the men of the Greater Lehigh Valley, PA and the surrounding areas. ### Fitness Open to all men of any fitness level, our workouts are peer-led and designed to be challenging for all, while not leaving anyone behind ### Fellowship Bonds of genuine friendship formed in the pre-dawn Gloom and strengthened through social gatherings, races