A Different Kind of Gym
MX3 Fitness does things a little differently at our "Best of the Bay" award-winning gyms in the Mission, Castro and Lower Haight. We are reservation-based private gyms with each location divided into “fitness zones.” These 200 sq ft areas have all the equipment you need to get a great workout (we’re talking squat racks, functional cable machines, free weights… the works!). You reserve a fitness zone for an hour to workout on your own and that zone is all yours. No more fighting or waiting for fitness equipment. We also have step ellipticals, rowers, assault bikes, and treadmills (Castro and Mission only) for cardio. Monthly memberships include keyless entry for extra convenience.
As part of our On Your Own workouts, we welcome drop-in day passes from locals and out of towners. Simply start an account, buy a workout credit, pick a fitness zone time slot, and stop on by. Our big difference? Couples workout for the same low price! Currently only available at our Castro and Mission location. Get started here.
A Little More About Us
MX3 Fitness has fitness studios in San Francisco’s Mission, Castro and Lower Haight districts. We are proudly LGBTQ-owned and operated and have been serving San Francisco since 2016. We like to think of ourselves as your neighborhood gym. We also like puppies (so you can bring your well-behaved dog with you when you workout).