Train for a
Longer Life.
Functional & longevity training with husband-and-wife coaches.
Based at Kali Collective — 2320 W Copper Silo St, Eagle, ID.
Functional
Training
Longevity
Focused
15,000+
Hours Experience
Built on a
Decade of Dedication.
We are a husband-and-wife team who have been training clients 1-on-1 since 2015. With over 15,000+ hours between the two of us, we have worked with people from all walks of life — from athletes to retirees — helping them move better, feel stronger, and live longer.
Hours Training Clients
Year We Started
Dedicated Coaches
Kali Collective
Longevity Training
Training designed to keep you strong, mobile, and independent as you age. We focus on joint health, balance, and sustainable strength that lasts a lifetime.
Functional Movement
Build practical strength that translates to everyday activities. Squat, push, pull, and carry with confidence in everything you do.
Husband & Wife Coaches
Two coaches, one vision. We bring different strengths and perspectives to every session, giving you the best of both worlds in your training journey.
Tiana Durbin
Born and raised in the surf and sand of Huntington Beach, fitness has always been the heartbeat of my life. My journey began on the volleyball court, where I spent my elementary, middle, and high school years learning the value of discipline and teamwork.
In 2015, my path took a transformative turn when I discovered CrossFit. Alongside my husband—who had recently transitioned out of the military—I had the incredible opportunity to train under Brian McKenzie, the founder of CrossFit Endurance. That experience, followed by a year of training at CrossFit Costa Mesa, deepened my understanding of human performance and fueled my passion for helping others.
Since moving to Idaho in 2017, I have spent seven years as a nutrition coach, helping clients fuel their bodies for longevity and strength. In 2021, as my youngest child turned two, I officially leveled up my coaching by becoming a Certified Personal Trainer. Today, I combine years of high-level performance training and deep nutritional expertise to help my clients build lives that are as strong as they are sustainable.
James Durbin
James Durbin was born and raised in Boise, Idaho, where he developed the discipline, work ethic, and competitive drive that would shape the foundation of his career. After high school, he enlisted in the United States Marine Corps, graduating as Company Honor Man from Marine Corps Recruit Training and again earning Company Honor Man honors at the School of Infantry.
Driven to pursue the highest levels of military performance, James became a Recon Marine and graduated Honor Man from Marine Combat Dive School before finishing his enlistment with 1st Force Recon Company. His military career forged a deep understanding of resilience, leadership, physical preparation, and mental toughness under pressure.
Following his service, James continued his pursuit of elite human performance by training under world-renowned coach Brian Mackenzie, known for his work in endurance, breathwork, and performance optimization. He later trained under Max Mormont at CrossFit Costa Mesa, further expanding his knowledge of strength, conditioning, and functional fitness.
Today, James lives back home in Idaho with his wife, Tiana, and their two children, Penelope and Oliver. He trains clients out of Kali Collective, where he combines elite-level experience with practical coaching to help people build strength, confidence, resilience, and long-term health.
Our Packages.
Personalized one-hour training sessions, tailored to your goals.
4-Session Package
4 sessions
Four personalized one-hour training sessions. Perfect for getting started and building momentum with functional and longevity-focused training.
8-Session Package
8 sessions
Eight personalized one-hour training sessions. Our best value package for building lasting strength, mobility, and movement confidence.
Single Session
1 session
One personalized one-hour training session. A great way to experience our longevity and functional training approach before committing to a package.
All packages include personalized programming, movement assessment, and ongoing support.
After six months of longevity training with FluxLab, I have more energy than I did in my thirties. The functional approach changed how I move through everyday life.
Sarah M.
Training for 18 months
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Move Well.
Live Long.
Feel Strong.
Ready to Start
Your Journey?
We offer a complimentary consultation at Kali Collective, 2320 W Copper Silo St, Eagle, ID 83616. Let us learn about your goals, assess your movement, and create a personalized plan to help you train smarter and live longer.
Kali Collective
2320 W Copper Silo St, Eagle, ID 83616
Get In Touch.
Ready to start your training journey? Send us a message and we will get back to you within 24 hours.
Visit Us
Kali Collective
2320 W Copper Silo St
Eagle, ID 83616
Training Hours
By Appointment Only
1-on-1 sessions scheduled around your availability
Experience You Can Trust
Training clients since 2015
15,000+ hours between the two of us training people 1-on-1