Movement is Medicine, Community is Key
Feel YOUR Best
Moving today to help you feel better today and tomorrow. Join our community and transform your fitness journey.
- Let's Ruck
- Stretch & Breathe
- Kids Training ✨
- Nutrition Coaching
- Outdoor Classes
- Community First
- Group Sweat
- Let's Ruck
- Stretch & Breathe
- Kids Training ✨
- Nutrition Coaching
- Outdoor Classes
- Community First
- Group Sweat
14+
Years Experience
Trainers & Coaches
Trainers & Coaches that change lives
With us, exercise is a way of life. We exercise today to feel good today, and tomorrow. Based out of Mill Valley, we offer a variety of outdoor, live, and pre-recorded group exercises classes designed to help you achieve sustainable physical health.
We strive to change the narrative that exercise is pain and punishment. Classes are fun, movements are functional, and laughs are many!
Outdoor Workouts
Fresh air, fresh energy, real results
Live & Virtual
Join from anywhere, anytime
Community
Stronger together
Mind-Body
Holistic fitness approach
Our Classes & Schedule
Find Your Perfect Workout
Whether you’re just starting out or looking to level up, we have a class designed for your goals.
Group Sweat
Let's Ruck
Stretch & Breathe
Experience The Energy
See It In Action
Get a taste of the energy, community, and fun that awaits you at Just B Fitness.
✨ Now Available · Kids Training!
Building Strong Kids Through Movement
I’m excited to announce specialized fitness training for kids to help your children develop a love for movement, build confidence, and establish healthy habits that last a lifetime.
Build Confidence
Grow strong through achievement
Teamwork Skills
Learn cooperation & communication
Healthy Habits
Setting routines for life
Fun & Engaging
Every session is an adventure
Ready to get started? I’m excited to be your child’s guide!
10-16
Years old
Testimonials
What Our Clients Are Saying
As someone who’s not super enthusiastic about exercising on my own, I truly enjoy spending mornings with Bria and her incredible community of like-minded folks, looking to stay fit and healthy. Every single class is unique and filled with super creative themes. Bria has a way to make everyone feel comfortable in their own body and is always there with a helpful suggestion or alternative movements. She has encouraged me to be accountable for my fitness and I am forever grateful for her.
Bria’s outdoor workouts are a blast!! We have never had the same workout twice and she loves to add fun to the work by incorporating themes. She works us hard and we are always thankful for the well thought out and challenging workouts!!
Bria’s classes are always well prepared, engaging and just plain fun! I always feel the effects the next day but never too sore. I appreciate the thought she puts into every workout and the people she brings together in the Just B community!
Overall, I’m so grateful to have found Just B Fitness and Bria’s outdoor classes. They’ve become an essential part of my weekly routine, and I feel lucky to have such a wonderful community of like-minded people to work out with. I hope Just B Fitness continues to thrive for a long time to come – it’s a truly unique and special program that deserves to succeed
Get In Touch
Ready to Start Your Journey?
Have questions about our classes or ready for your first workout. Fill out the form and we’ll get back to you within 24 hours.
Location
Marin County, California Outdoors & Online
briajustbfitness@gmail.com
Class Hours
Mon & thu: 7:30-8:30 & 8:30-9:30am
