7th Degree Black Belt and Taekwondo Grandmaster, Jon Engum currently displays an uncanny combination of flexibility and whipcord strength. Jon moves with speed, suppleness and enviable power—a model to his younger students and a terror to those who face him in a fight.

But it wasn’t always this way. Because there was a time of crisis in Jon’s martial career where he began to lose his edge—from the effects of aging, plus the wear and tear of constant combat.

This book reveals the complete “Flexible Steel” system Jon Engum developed to regain and maintain his edge as a fighter. But even more importantly, Flexible Steel can give you the most priceless gift of all: the freedom to move, pain-free, with easy power, graceful strength and a sense of fluid well being.

A Simple System of Secrets for

Regaining Your Youthful Mobility and

Mastering the Art of Flexible Strength

Signed by the Author order HERE

Flexible Steel PDF eBook order HERE

"Lots of people have asked me about advanced flexibility training since they can do this or that & are looking for the next step in their training.  If you're looking for an easy-to-follow format that's going to get you more mobile in a manner that's still going to give you quick-twitch strength, I strongly recommend that you peep this work by my colleague, Jon Engum.  Engum is a Master RKC strength training professional & a legitimate 7th degree Taekwondo black belt who can  COMPLETELY walk the talk.  This book gives you the fast-track insights into the training methods that he's used to turn the below-average Jon into flexible steel."

- Dr. Mark Cheng, Los Angeles, CA

“Flexible Steel is my favorite stretching book.  Jon Engum reached his forties before he reached his first split.  Follow his remarkable journey and achieve the flexibility you never thought possible.”

- Pavel Tsatsouline

Flexible Steel Turned Back Time

"When Jon Engum presented this material in a workshop, I had two questions: 1) Can I get my kicks back and 2) would I be able to see the return of a split.  The answer was yes and yes on both counts.  The drills presented in this book will get your flexibility goals in an insanely fast period of time.  With my background in Chiropractic, I have seen many different flexibility modalities and Jon has taken these principles and made them accessible for everyone.  If you work on the program as laid out you will improve.  PERIOD.  And even better...Master Engum isn't just peddling theory.  He is a living breathing example that this system works and he also has a growing list of student to prove it.  Don't take my word for it however.  Practice the drills and convince yourselves that Flexible Steel is a gold mine for your flexibility training."

- Dr. Prentiss Rhodes, Chicago, IL


“Just finished reading Jon Engum's new book Flexible Steel.  It is excellent explanation of both the methodology of stretching and how to apply it into your own program to safely, quickly and effectively take your flexibility to places you never thought possible.  It is the perfect companion to Pavel's Relax into Stretch.”

- David Whitley, "Iron Tamer Dave" Master RKC

"Great techniques that really work.  I just this spring had the privilege to become one of Grandmaster John's students both in Taekwondo and Kettlebells. He has incorporated the techniques in his book into his classes. As a soldier it is vital that I remain both strong and agile. I came into his teachings from a background of heavy lifting with little emphasis on mobility. I have gained inches of flexibility and retained my strength. Now I have a guide I can take anywhere I go. This book gives a detailed guide on how to revitalize your body and move with power and grace. It is easy to follow and as I can personally attest, effective. I look forward to accomplishing the splits as a 30 year old."
                                                                                                                                                            -Shawn Jacobson / Randall, MN, USA

A Step By Step Instruction Manual For Flexibility

“When it comes to flexibility Jon Engum knows his stuff.  I ha the opportunity to learn these techniques diretly at one of his flexibility workshops where the results were literally instant and drmatic.  For that reason I bought this book the moment I learned about it and it was exactly what I was hoping for.

On the surface this book may seem to be about techniques and methods that can be found elsewhere, but the reader that digs further and has the courage to do more than skim and actually follow the instructions as written WILL be rewarded. As Jon states in the introduction, he is not taking credit for these ideas he is simply showing you how to cobine and apply them... and honestly, that's where most people fail and it's exactly what I needed.

What I love about FLexible Steel is the author takes and picks up where other books leave off and simply says "do this. Jo Engum's Flexible Steel is the most direct approach to effective flexibility I've found anywhere.  It's a concise step-by-step manual that eliminates all the guess work.  A structured approach to stretching that tells the reader exactly what stretches to do, in what order, and for exactly how many reps and sets.  Within seconds of getting the book I was able to skim the table of contents, open up to the "Frog Stretch" routine, follow along...and start seeing the results.  Thanks to doing this routine twice a week my hips have never felt better.

If you want a no-nonsense instruction manual without fluff for instant and dramatic gains in flexibility, this is it.  You body will thank you, your competition will respect you and your clients will love you.”

- John Scott Stevens, RKCII, CK-FMS, 5th degree black belt Taekwondo

Even us Old Folks

“As an older adult and having been desk bound for 30 years with little exercise, I find this very helpful.  Adjusting it for my age and physical condition, I am progressing and very well pleased.  The range of motion exercises are expecially helpful.”

- Miriam Brougher / Elizabethtown, KY, USA