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    CozmoSize Fitness

    5.0 (24 reviews)
    Closed 6:00 am - 7:00 pm

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    [[HIGHLIGHT]]Shout out to Matt, the owner, who guides his customers, who then become his friends, on strengthening their bodies.[[ENDHIGHLIGHT]] I am in the strength training twice a week program and attend the MRT class on Fridays. Within months, my body fat has dropped, my muscle mass increased, and my strength is noticeably different! Kalena, who assists Matt, is also amazing. They both watch how you're doing the workout and coach on proper form to ensure you don't get hurt and get the most out of the exercise. [[HIGHLIGHT]]Another great part of this gym is that you become family. i've never been to a gym where I know so many people and actually spend time outside the gym with them.[[ENDHIGHLIGHT]] Reach out to Matt if you want to try it!

    Barrett V.

    I've been doing CozomSize for a few years now and it's become a staple of my life. Matt's a very knowledgeable trainer and a great guy. The workouts are varied and always interesting, so I never get bored. Overall, I would (and have) recommend CozmoSize to anyone looking to increase their strength and explosive power.

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    9 months ago

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    Review Highlights - CozmoSize Fitness

    Shout out to Matt, the owner, who guides his customers, who then become his friends, on strengthening their bodies.

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    Well I love this gym it has absolutely everything you possibly need to shred your body. If you are…read morelooking to lose weight or gain weight this is your place. It is tucked away in simi valley. The owner is very nice and helpful. It is very clean and fun place to work out! Enjoy

    Not new to fitness, but wouldn't put myself in the athletic category, I've tried everything from…read morethe home & work gym, a couple of Crossfit boxes, yoga studios, and Average Joes to the Globo Gyms. Finally found my niche between heavy lifting at a typical gym, and doing my cardio outdoors. But recently, I needed that extra ooomph to push me harder than I was pushing myself. Now if you've ever been to a Crossfit gym, you know how hardcore that workout is. And not all Crossfit gyms are created equally. I wanted to try something different and maybe something that wouldn't burn me out so much that I couldn't continue the heavy lifting I was still doing. Enter Training Day Fitness. I liked the class structure. Kept me on a good schedule. And the classes were never ever too big. Another plus. The workouts were a great mixture of strength, core, cardio, and lots of movement. Something I was lacking in my own workouts. The results were amazing within the first couple of months. I completely blasted through y heavy weight plateaus. I was more energetic. I moved faster. Just all around healthier. And there was never a point where I felt that I was overdoing it to dangerous levels. The workouts were so scalable that no matter where you were in your fitness and what your goals were, everyone could workout together. And because it's a small gym, it feels like a family where everyone supports and encourages each other in their fitness journey. Price-wise, it may seem expensive when comparing to just a normal gym membership. But you have to keep in mind that every session is a personal training session. So when you break it down, the savings over a personal trainer at your Globo-Gym is great. And trust me on this one, having known personal trainers personally (haha) and seeing the training sessions at the gyms, I'd pass on those. Being that TDF actually trains young athletes from local schools, it's a great place for an average joe like me to get access to the kind of training that varsity athletes get.

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    Winning Edge Fitness - Some bike work

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    4.9(21 reviews)
    10.1 miChatsworth

    We have had our daughter coming here for just over a year…read more Mike has been working with her and has helped her in many ways! She needs help with her right leg and has been walking on it incorrectly. She now is Developing muscle, working well, And getting stronger!

    Winning Edge is a gym community like no other. If you want to do your own thing, and be left alone,…read morethis place is not for you. If you want to be encouraged to strive for excellence, come be a part of our family! There are coaches here who actually teach and inspire you to get better at your form and improve upon your weaknesses. Yes, modifications are possible and they will scale the workouts for you if you have an injury, or you're learning a new skill, but as an athlete, you're encouraged to push yourself a little harder if you can. And you read that right, I said athlete. When I walked into this facility nearly two years ago, it was mainly due to a challenge set by a group of mom friends who wanted to lose fifteen pounds. Losing weight wasn't my ultimate goal. I just wanted to get stronger and lift things easily into old age. I was always intimidated by CrossFit, having only heard about how intense the workouts were and how people got badly injured. The idea of sweating with other people grossed me out, too. You'd be amazed what a little peer pressure from a group of moms will do for you, though! The first week was grueling and my body felt like I had been run over by a semi-truck. A friend who had been doing CrossFit for years told me to stick with it, and to take a rest day every three days or so. So bit by bit, with encouragement from total strangers who later became good friends and coaches who patiently taught me some skills, I stuck with it. Well fast forward to about a year into my fitness journey and Covid-19 struck the entire world. Winning Edge closed its doors early, way before the quarantine lockdown was enforced in LA County. This didn't stop us from working out together as a group, however. Management allowed us to take gym equipment home on a first-come, first-served basis, without charging any additional fees. This enabled us to continue working out from home via Zoom, which was adopted early on by our coaches. Instead of gaining weight during Covid, I actually got fitter. We even had fitness challenges and Zoom happy hours to keep us feeling inspired and connected. Winning Edge continued to make things better when we were finally allowed to get back to the gym but, surprise, we had to work out outdoors. We had an amazing canopy set up and an outdoor rig. A reservation system was put in place so we could limit the number of people coming and going. When it got too hot indoors, the powers-that-be had enormous industrial-sized fans installed. Basically, the members are spoiled at this gym. I mean, I do remember a time when we had towels for our use, but with Covid-19 that never made a comeback and understandably so! I didn't mean to write an entire essay on my love for all things Winning Edge, but what it comes down to is the people that make up this place. When you walk into this gym, know that you will become part of a community that celebrates the first and last person finishing a workout. You face the grueling workout together and enjoy the reward together. It's even ok to sweat next to these peeps. Just bring your own towel.

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    A few members post workout

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    F45 Training - Ventura

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    4.7(23 reviews)
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    I recently discovered that the same parent company owns FS8 and F45 training. FS8, which is a blend…read moreof Pilates/yoga/tone in Thousand Oaks (which opened up early Feb of this year), definitely kicked my butt, so I decided to see what f45 offered. F45 is a cardio/resistance training blend. For an intro offer of $25 for 5 classes, I decided to see if this place would kick my butt, too. I met one of the instructors, Cara, who was very helpful and showed me around the place. There's a Pilates class in the back room and a sauna that you can use if you join for the F45 membership, plus an extra fee. Cara explained that the screens would show the movements we were to mirror, but she also told me to go at my own pace and helped me with my form during several of the stations. I went around the room 3 times (15 minutes total, 45 seconds at each station plus 15 seconds to transition to the next station) to get in a very sweaty 45-minute workout. I used to think I was in decent shape. F45 training laughed in my face as I prayed for the 45-second exercise to end, so I could transition to another 45-second exercise that I also wished were over. Somehow, I made it through the workout, humbled. This place is high energy and definitely challenges you mentally and physically. I look forward to continuing my F45 training journey!

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    CozmoSize Fitness - healthtrainers - Updated July 2026

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