I'm so not a gym-type gal. I hike. I take advantage of the year-round gym we have in our backyard here in Boulder: Mt. Sanitas...Royal Arch...Bear Peak. Welp, humility descended upon me rapidly in the form of F45. And now I love (and may be addicted to) interval training. The difference in strength and leanness I've achieved in 2 months at F45 far exceeds that achieved after years of hiking regularly. I'm undboutedly the weakest in the early morning class but somehow that doesn't make me self-conscious. I have my own goals (I can finally do a real burpee instead of stepping it back!) and can admire the strength and endurance of each person pushing themselves through the various exercises. I didn't think anyone would really notice that I got through a set of legit burpees and I certainly didn't want to call attention to myself but leave it to the morning trainer to give me a discrete "right on, VK!" His response met me exactly where I was at. Proud of myself but not wanting to make a thing of it. The team running this facility is truly superlative; they are knowledgeable, invested, authentic, and enthusiastic. They value providing a focus on proper form and possess an uncanny ability to recognize what degree of encouragement you want/need and can determine when you should push more or when you are in fact pushing hard despite not feeling on top of your game. No matter what, I find that the time flies despite being challenged. I look forward to it every morning. I suggest giving the 7-day free trial a go and taking it from there. The experience pretty much sells itself. read more

I'm a 38 year old female who has been through a dozen or more gyms and fitness studios, trainers, workout buddies, dope workout playlists, meal plan trackers, and fitness apps. All have helped me to various degrees meet fitness goals throughout my life but nothing really stuck or integrated really well with my life. F45 is the ONLY training center that combines all of those benefits into one seamless, fun, sustainable experience! There is also an incredible variety of workouts and impressive technology to keep you engaged. Since joining F45 in January, I have gradually increased my training and commitment with incredible results - physically, mentally and emotionally. I've also gained incredible friends! Especially in the first few months, I had times of stepping back from my training while assessing my capacity, commitment, and goals. Through it all the F45 trainers, owners and fellow members have always been supportive, encouraging, and fun! Doing the F45 8 Week Challenge was one of the best decisions and commitments of my life. At the end of the challenge, I lost 17 pounds and 6% body fat while regaining 4 pounds of lean muscle mass and heaps of confidence and self-esteem. Find the money, find the time and your life will get so much better with F45. read more

My husband and I joined F45 in January - we were both a bit burned out by our current workouts and needed something new. From day 1 we were hooked and now go at least 5 days per week. Outstanding trainers, music, facility & camaraderie with the other members - like no other workout program we've ever experienced. Workouts alternate between cardio & weight training with hybrid workouts on weekends. Another huge plus has been the Challenges which provide meal plans for free - my husband lost 10 pounds and I've lost 14 lbs & 4% body fat since we went on the program in April. The transformation of many members is amazing to see. The constantly changing workouts keep you interested & coming back for more. We actually look forward to our 6:30am workout every day. When I started there were so many things I was afraid to do or just thought I physically couldn't do: bench hops, box jumps, pull ups, etc. but over time I've been able to do all of them. Bill, Ryan & Ali are amazing - great support and genuinely care about the members. It really has been life changing. Just try it - yes, the workouts are HARD but they are so worth it. read more

F45 is an amazing studio, with great trainers, an excellent schedule of classes and easy bike ( and car) parking. The workouts are very challenging (even for the very fit) effective for strength and cardiovascular health as well as mental engagement. You will walk out of each session energized and worked (hard)! Not only do the workouts put Central Boulders F45 studio above the rest, but also the friendly and knowledgeable trainers. They are in the studio to constantly (and kindly) assist you with your form, function, and encouragement. Never will you feel like you "can't" nor will you ever feel worried that you're "doing it wrong". This is the first gym where, no matter how many other students are in the session, I feel like I have a personal trainer who makes sure I am being pushed hard and focused on at all times. Join F45 as soon as you can, you will feel healthier, fitter and stronger than you ever have, no matter how fit you are now. (The music is another element that is perfectly dialed in) read more

F45 Central Boulder has completely changed my mind about fitness! I was blown away with how much commitment and dedication the team has to serving this community! They really really care! I was challenged week after week working different exercises daily ! They wanted to know my feedback & they wanted to get to know me as an individual, too! I've never been apart of a team training situation until i joined this gym that i consider a family & it has been one of my major hilights of the year! It's so beautiful to see that others have your back & trainers actually believe in you and support you to be your best:) I've made connections & a foundation to go out into the world and have a sense of confidence and empowerment to thrive read more

There are so many great things to say about F45 and their trainer that it's hard to begin. Ever since my first class I have had the up most respect for this place. It has honestly changed my life in so many ways. I used to just go to the gym and lift and do cardio but it was just such a struggle trying to go a few times a week. Since I have joined F45 in January I have lost almost 30 lbs! Bill, Ryan & Ali help you out so much with achieving your goal of feeling and looking great. Everyday is a different work out which is awesome and when you walk out of the central Boulder location you know you are bettering your life. read more

Seeing how this was my first time doing any type of gym/workout like F45, I was very nervous about if I could handle it. What is so great about F45 is that you can modify everything to meet your skill set. All of the trainers are very knowledgeable and friendly. They truly care about you and want to help you reach your fitness goals. I love how every workout is different, so you never get bored.You can see results right away from cardio and weight training sessions to 8 week fitness challenges. I look forward to coming to F45 everyday! It really does feel like we are all one big family at F45. read more

Let me sing the praises of this place! Great coaches, supportive and fun environment, lots of class time availability and .... killer workouts with great results and none of injuries! Been a member since they opened in January and it's the happiest check I write every month. So very grateful for all the attention, care, fun and effort that Bill, Ryan, Allie and all the rest of the coaches put in to each workout. if you're considering F45, the central Boulder location is the one for you and do yourself a favor and get in there tomorrow! You'll be so happy you did. read more

I joined F45 in early August and love it. I'm really not a "gym-type" but this class works all my muscles and is a great way to cross train and prevent injuries for the outdoor activities I love. Additionally, it's a great community and the class goes by quickly. The class motivates me to push myself and has just the right amount of "external nudge" without being too much. I have been traveling the last few weeks and am looking forward to getting back into it upon my return - not something that typically happens when on vacation! read more

Was walking around Twenty Ninth Street mall and found this gym so decided to give it a shot using a free trial class. From the moment I walked I was welcomed by Bill the manager and he made me feel very comfortable and explained to me the concept behind F45 and how the workouts differ every day. Ali and Bodhi are very good trainers and are always pushing me hard in order to improve and get fitter. Overall I have had an excellent experience with F45 and I am looking forward to continuing that experience. read more

Tengo 8 meces asistiendo a F45 central Boulder y estoy contentísima! Los resultados que eh obtenido son increíbles, pero no los hubiera obtenido sin la ayuda del staff de F45! Son mi segunda familia, unas personas tan lindas, siempre te hacen sentir bienvenida, siempre dispuestos a ayudarte y motivarte, siempre con una sonrisa. Les recomiendo este lugar 100% Desde el dueño Bill, su familia, el staff y el gimnasio en si, muy buen excelente! read more

I started going to F45 in July and have been going ever since. I really love how the workouts are all ready set, so all I have to do is show up! The trainers are absolutely superb and make the effort to be a support system for you. I was honestly afraid I was not going to be able to fit the workouts into my schedule once school began, but now I can't imagine my week without my 6:30 am F45 class! read more

From the ever-varied, functional movement based workouts to the fabulous music and supportive, knowledgeable training staff, F45 has all you'll need to keep you coming back! The space is open and bright, the equipment is plentiful and well maintained, and the studio and locker rooms are kept very clean and inviting. F45 gets an A+ for its great atmosphere and amazing workouts! read more