50+ Classes Weekly at
Boulder’s crossfit Gym
At Sanitas, we’re more than a gym. We’re a full-service fitness and recovery center in central Boulder offering everything you need to get stronger, leaner, and healthier—whether you're new to training or looking to level up your performance.
Group Classes in Boulder
CrossFit
Total-body strength, conditioning, and skill work. Our core offering combines strength, conditioning, and skill work to build lasting fitness. You’ll train with barbells, bodyweight movements, dumbbells, rowers, bikes, kettlebells, and more. Every class is led by a coach and designed to keep you progressing, engaged, and challenged. There’s simply nothing more effective for getting stronger, leaner, and fitter. Open to all levels.
Functional Strength
Strength-building and joint-friendly lifting. Build usable strength with simple, effective strength training that builds muscle, improves posture, and boosts joint health. Ideal for anyone wanting to get stronger without the intensity of a full CrossFit class.
Endurance & Track
Cardio-focused workouts to build your engine. Cardio-focused classes that improve stamina, speed, and fat-burning using longer intervals of running, rowing, biking, box jumps, jump rope and more. Seasonal Track classes are held outdoors and focus on race prep and running form.
Olympic Lifting
Barbell technique and progressive strength. For athletes ready to take lifting to the next level. These classes focus on progressive barbell work—back squats, deadlifts, bench press, cleans, and snatches. Led by a world record holder in the clean and jerk, you'll get expert coaching to lift heavier, move better, and build lasting strength.
Women’s Strength
Confidence-building strength training in a supportive environment. An expertly led strength class designed to help you build confidence with weights, improve technique, and get stronger in a fun, empowering environment. You'll focus on lifts like squats, presses, and deadlifts, plus accessory work for muscle tone, joint health, and functional strength. Open to all levels—no experience needed.
Yoga
Mobility, flexibility, and recovery for active bodies. Recovery-based classes designed for active people. Improve mobility, flexibility, and body awareness while reducing stress and injury risk. A great complement to strength and high-intensity training.
Open Gym
Train on your own time in one of Boulder’s best-equipped gyms. Make up a missed workout, follow your own program, or work on skills and recovery—all included in your membership. All class programming is available in our app, and we also offer Competitor and PRVN HYROX tracks for those looking to level up.
Get Real Results
Join hundreds of others who've changed their lives at CrossFit Sanitas. Your fitness journey starts here.