Boulder’s Top-Rated CrossFit Box Since 2016
Ready to Get Stronger, Leaner, and Feel Your Best?
50+ expert-led classes, full recovery tools, and everything you need to train smarter and feel your best.
Open Hours
5:30AM - 7:30PM
Classes Weekly
50+ Sessions
Location
Central Boulder
BOULDER’S BEST
What Makes Us Boulder’s Top CrossFit Gym?
Rated 4.9 from 200+ Reviews on Google
Voted Boulder’s Best CrossFit Gym ( Daily Camera, every year Since 2016)
Featured in SHAPE and SELF magazines as one of America’s top CrossFit gyms
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50+ coached classes weekly
Find a time that works for your schedule with morning, midday, and evening classes.
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Expert coaches who care
Personalized coaching and attention in every class, every time.
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Convenient Boulder location
Train where you live, work, and run errands—skip the commute and make every minute count.
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World-Class programming
Created by our Head Coach, who leads PRVN’s affiliate program (used by 600+ gyms globally).
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Everything under one roof
Cold plunge, sauna, massage & physical therapy + nutrition coaching, InBody Scans…
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Real community support
Build lasting friendships and find accountability partners who cheer you on.
EXPERT PROGRAMMING
Train Smarter, Not Just Harder
Our head coach programs for over 600 gyms worldwide through PRVN — the same platform built by CrossFit's most decorated athlete in history.
At Sanitas, every workout is:
Progressively designed
Built for long-term results, not just temporary soreness
Boulder lifestyle focused
Tailored for strength, ski prep, trail running, and more
Expertly coached
Form correction and personal guidance in every class
FOR EVERYONE
Brand New or Experienced? We’ve Got Your Back
Whether you're just starting out or moving from another box, our coaching, onboarding, and flexible schedule make it easy to get started.
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Start with Foundations
✓ 3 Personal Training Sessions
✓ Month of Unlimited Classes
✓ Nutrition Consult, InBody Scan
✓ 21-Day Coach Check-InLearn the fundamentals with expert coaching to set you up for long-term success.
$299/1st Month -
Start Class
✓ Athletes with experience from another CrossFit can jump right into classes.
✓ Get started with classes or get a refresher with 1-2 personal training sessions.
$211-228/Month
Learn more about our Foundations Program
EVERYTHING YOU NEED
Everything You Need — Under One Roof
All the tools, coaching, and support you need to reach your fitness goals and get in great shape.
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CrossFit
Build strength, power, and functional fitness with expert coaching on proper technique.
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Functional Strength + Olympic Lifting
Build strength, power, and functional fitness with expert coaching on proper technique.
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Endurance + Track
Improve stamina and speed with structured track workouts and interval training sessions.
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Nutrition Coaching
Get personalized nutrition plans based on your goals and InBody composition testing results.
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Physical Therapy & Massage
Recover faster with professional massage and physical therapy from our certified specialists.
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Cold Plunge + Sauna
Rejuvenate with our state-of-the-art cold plunge and infrared sauna facilities to optimize recovery.
MEMBER STORIES
What Our Members Say
Join hundreds of satisfied members who've transformed their fitness and found a supportive community at CrossFit Sanitas.
GET STARTED
How to Get Started
Join hundreds of satisfied members who've transformed their fitness and found a supportive community at CrossFit Sanitas.
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Recovery Lounge
Rejuvenate with our state-of-the-art cold plunge and infrared sauna facilities to optimize recovery.
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Learn the Basics
Three 1-on-1 sessions to build your foundation with expert coaching.
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Join the Community
Start classes and build momentum with a supportive network around you.
Ready to Transform Your Fitness?
Join hundreds of others who've changed their lives at CrossFit Sanitas. Your fitness journey starts here.