KS Fitness
KS Fitness is a boxing gym located in Fullerton, California. Specializing in Pro Training, Traditional Boxing and Fitness Boxing. Rated 5.0 out of 5 by community members.
Specialties
Reviews
Just joined KS Fitness and I’m already so glad I did! 💪 From day one, the environment has been super welcoming and motivating. The trainers really take the time to help you understand the workouts, correct your form, and push you to do your best. You can tell they genuinely care about helping people improve and reach their goals. What I love most is the positive energy in the gym — everyone is supportive, and it makes working out something I actually look forward to. Even in the short time I’ve been here, it’s already helped me feel more motivated, consistent, and confident in my fitness journey. If you’re looking for a place with great coaching, a supportive community, and workouts that actually challenge you, I definitely recommend KS Fitness!
KS Fitness helped me so much in my weight loss journey. I started at 190ish lbs and the coaches motivated me to the right way. Now I’ve lost nearly 30 lbs already. It was hard in the beginning but I can proudly say that I’m getting used to the workout. They push you to become a better version of yourself and I’m so glad that I joined this gym.
This gym has been more than just a place to work out — it’s been a game changer for me. From day one, the trainers and staff believed in me, pushed me through the tough moments, and celebrated every little win. Thanks to their support I’ve seen real changes — not just in my body, but in my confidence and mindset. I feel stronger, happier, and so proud of how far I’ve come
Highly recommend checking out this local gym in the OC. I initially found them via ClassPass a few years ago, then purchased group sessions directly, and now am also enjoying one-on-one sessions. SPACE: The staff does a great job keeping the floors, equipment, and restroom clean. There's a separate small changing room that makes it easier to get a workout session in before or after work. Macro Shack is also now open and available for protein shakes. (I'll plan to try a shake or their cold brew soon!) STAFF: Amazinggggggg. Both Coach Steph and Coach Eric are encouraging and attentive. They and Kadeem have been supportive and understanding of the modifications that my body and schedule limitations currently require. I feel super supported by them in my health and wellness journey. Thank you KS Fitness team. COMMUNITY: Friendly people and from what I've gathered, everyone's priority is to enjoy a good workout. VALUE: Group class packs and one-on-one training prices seem very reasonable for SoCal and with boxing/Muay Thai elements that can be incorporated into sessions. TLDR: Try a class, session, or shake!
KS Fitness is definitely an awesome training gym with great trainers/ motivators. They help you get through the intense workouts & support you to reach your goal as well as dominating the training that you go through. An awesome, fun, great, optimistic environment & experience. Definitely a spot to look into for your better well being physically. Thank you Kadeem and everyone there for the great support! :)