DYNAMIC ARM SUPPORT

More support than a sleeve. More mobility than a brace.
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2x ABCA AWARD WINNER
VALIDATED BY SCIENTIFIC RESEARCH
PATENTED TECHNOLOGY
RECOMMENDED BY DOCTORS
WORN BY THE PROS
2x ABCA AWARD WINNER
VALIDATED BY SCIENTIFIC RESEARCH
PATENTED TECHNOLOGY
RECOMMENDED BY DOCTORS
WORN BY THE PROS
PROTECTING ARMS & FUTURES
PROVEN SUPPORT

The Kinetic Arm is the world’s first dynamic elbow and shoulder support scientifically validated to reduce arm stress without restricting movement.

Designed for baseball players at every position and level, it supports the arm through pitching, throwing, fielding, hitting and training—helping athletes manage workload, optimize mechanics, recover more effectively and stay prepared to perform throughout the season.

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Media Attention
PRO SPOTLIGHTS

Kinetic Arm is increasingly showing up where baseball's biggest moments happen — from ESPN broadcasts of the Little League World Series to professional organizations across MLB, MiLB and Nippon Professional Baseball (NPB).

That visibility is also driving growing attention across sports media and digital coverage, where high-profile players, journalists and baseball communities are sparking conversation around this new category of Dynamic Arm Support.

From nationally televised games to professional clubhouses and headline-making player sightings, Kinetic Arm is becoming part of the conversation around the future of shoulder and elbow support in baseball.

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PROVEN SOLUTION

MOTION-RESPONSIVE SUPPORT

The Kinetic Arm delivers dynamic support designed to stabilize the shoulder and elbow during high-demand arm movement. Powered by multi-patented MuscleWeb® technology, it helps manage arm stress while maintaining natural range of motion during throwing and swinging.

A strategic network of polymer tension bands activates during high-stress phases of motion, providing external support to the arm when it’s needed most—helping manage mechanical load without restricting performance.

HOW IT WORKS

ZERO RESTRICTION

ACTIVATED SUPPORT

VALIDATED BY RESEARCH
BACKED BY DATA

With more than a decade of research and data collection across leading sports performance labs, Kinetic Arm has been studied for its effects on elbow torque, arm mechanics, and dynamic arm stress during high-demand movement.

Using advanced wearable sensors and 3D motion-capture technology, researchers have analyzed how dynamic external arm support can help athletes manage mechanical load and support efficient movement patterns. Most recently, research involving Kinetic Arm was presented by ASMI and ABBS at the 2025 MLB Winter Meetings, adding to the growing body of evidence supporting dynamic arm stabilization in baseball.

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Recommended by Medical Professionals

Orthopedic surgeons, sports medicine specialists, and physical therapists share their experiences with Kinetic Arm.

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This product exceeded my expectations! The quality is outstanding and it has made a real difference.

Dr. Lawrence Lemak

Dr. Lawrence Lemak

"The data shows that the Kinetic Arm could definitely have an impact in reducing overuse injuries."

"The Kinetic Arm has been instrumental in my rehab protocol for Ulnar Collateral Ligament reconstructions. We have also had great success in unloading our pitchers - its a new frontier!”

Dr. Rick Lehman

Dr. Rick Lehman

Orthopedic Surgeon & Medical Director at U.S. Center for Sports Medicine.

"The Kinetic Arm definitely shows promising uses for not only rehab professionals but also for performance coaches. I foresee that this prototype can usher in a new era of health and performance for throwing and swinging athletes."

Dr. Ryan Balmes

Dr. Ryan Balmes

 Board Certified clinical specialist in orthopedics and sports physical therapy.

"Excellent Product. In my line of work I am blessed to treat all levels of baseball players both after an injury for rehabilitation purposes along with healthy athletes in order to promote improved performance and injury prevention. I have searched high and low for good adjuncts to care to get my athletes back on the field as quickly and safely as possible and have finally found an awesome product to aid in injury prevention. Not to mention one that finally has some research popping up to back it. The Kinetic arm has been a game changer in my care plans for players returning from surgery or injury along with the athletes who are experiencing medial elbow discomfort with valgus stress or shoulder problems. I highly recommend this product!"

Dr. Alex Beebe

Dr. Alex Beebe

PT, DPT, OCS, CSVS, CMT

"I have been a Physical Therapist for over 20 years. I worked with a shoulder specialist, have been OCS certified since 2010, am a Champion Performance Specialist, and am a Certified Arm Care Specialist. More importantly, I am a father whose son plays high school and travel baseball. My son had an arm issue. We have used the kinetic arm (K1 initially) and now the K2 for essentially every throw he has made for the last 2 years. He wears it under his jersey during the games and at every practice. It has been a game changer for my son and essentially all my patients in the last 2 years that have had arm issues."

Dr. Shannon Loy

Dr. Shannon Loy

 PT, MPT, Cert. DN - Clinical Director Advance Rehabilitation

"As an orthopedic physical therapist, I really like this product for not only recovery from elbow and shoulder injuries, but also in helping to reduce said injuries in the first place. I have suggested this to numerous baseball and volleyball players who love its results! Fantastic product and I’m glad you guys took the time to think about how to make something like this because it’s definitely making a difference."

Dr. Joseph McCaleb

Dr. Joseph McCaleb

DaVinci Physical Therapy, of Lamar

Clinicians that recommend using the Kinetic Arm will get their athletes back into play sooner and reduce the risk of re-injury. I highly recommend using this as an easy solution for injury prevention.

Dr. Jason Weeks

Dr. Jason Weeks

DC, owner of Marietta Physical Rehab and Team Physician of X3 Sports

"I first heard about the Kinetic Arm about 18 months ago which prompted me to dive into the research. After looking at the extensive research conducted and viewing/testing the models first hand. I knew this was a must for many throwing athletes struggling with anything from labrum/rotator cuff injuries to UCL strains. I have now used it with a variety of my athletes in physical therapy and have seen it reduce pain with throwing from a 7/10 to a 0/10 by just simply putting it on. Rehabbing shoulder injuries in competitive athletes can be a challenge because of the stress involved with the throwing and swinging motions, but with the Kinetic Arms' ability to offload stress while allowing proper biomechanics and full ROM, the process can be streamlined with better outcomes. Highly recommend 10/10!"

Dr. Nathan Teter

Dr. Nathan Teter

PT, DPT & Owner of Apex PT

"The Kinetic Arm by all means can be considered a potential and literal game changer for the overhead athlete. The Kinetic Arm has the capacity to reduce harmful stress on the joints and its non contractile structures, while at the same time allowing for sustained duration and intensity for practices sessions with overhead athletes. The applicability of this product may extend to various sports including baseball, football, tennis, pickleball, and track and field athletes. As a physical therapist and strength and conditioning coach, I would strongly consider using this product for rehab and training alike to ensure the long term health of my overhead athletic patient or client."

Dr. Tyler Wallace

Dr. Tyler Wallace

PT, DPT, CSCS

"Not only does the data show a decrease in elbow torque, the Kinetic Arm has the potential to be a great tool for performance and rehabilitation for throwing and swinging athletes. After testing it myself and with a few of our golfers, it helped alleviate elbow torque and stress off the trail arm. I'm excited to see the growth of the Kinetic Arm in multiple sports."

Dr. Edward Kim

Dr. Edward Kim

PT, MTC, TPI0-M3 
The Reality of Repetitive
ARM STRESS

Every throw, pitch, and swing places significant stress on the shoulder and elbow. During high-velocity throwing and powerful rotational movements, these joints are exposed to substantial forces as they work together to generate and control movement.

The problem is that stress often accumulates silently. Even when the arm feels healthy, each repetition places demand on the tissues responsible for stability, force production, and recovery.

For athletes who throw and swing repeatedly, that hidden stress adds up over time—making what happens during the movement just as important as what happens before and after it.

PROTECT YOUR ARM
Where the Arm is Under the Greatest Load

UNDERSTANDING THROWING STRESS

The shoulder and elbow experience their highest mechanical demands during the critical phases of throwing—when the arm reaches maximum rotation, rapidly accelerates and then decelerates after release.

These forces occur in a fraction of a second and repeat with every throw. Supporting the arm when these demands are greatest offers a new, more proactive approach to managing workload, promoting recovery and protecting long-term performance.

"I was tired of watching athletes get shut down by arm injuries. I was determined to find a better way."

INVENTOR. INNOVATOR. PROBLEM SOLVER

Kinetic Arm was invented by former baseball player, trainer, and biomechanics consultant Jason Colleran after experiencing firsthand how overuse injuries can derail athletic careers. Motivated to find a better solution, Jason spent decades working with athletes and studying human movement—leading to the creation of a new class of dynamic arm support designed to help athletes manage arm stress during motion.

A PROBLEM HE LIVED

Jason’s experience as a former competitive baseball player gave him firsthand insight into the physical demands of throwing and the impact overuse injuries can have on an athlete’s career.

A Mission He Accepted

For more than two decades, Jason has worked with athletes across multiple professional sports, specializing in performance, biomechanics, and injury prevention. He dedicated years to researching, designing, testing, and refining what would ultimately become Kinetic Arm.

A Solution He Created

Developed a first-of-its-kind dynamic shoulder and elbow stabilizer scientifically validated to reduce dynamic arm stress without restricting movement and now trusted by hundreds of thousands of athletes worldwide.

THE STORY BEHIND KINETIC ARM
Kinetic Arm is for everyone in the game.

EVERY POSITION / EVERY LEVEL

From pitchers and catchers to position players and coaches, baseball demands repeated high-stress arm movement. The Kinetic Arm provides dynamic shoulder and elbow support designed to help athletes manage arm stress during throwing and swinging throughout practices, games, and long seasons.
Built for Pitchers

High-Velocity Pitching

Pitching generates some of the highest forces in sports. Every pitch places significant stress on the shoulder and elbow as the arm accelerates and rapidly decelerates at high velocity. The Kinetic Arm provides dynamic support designed to help manage the mechanical load created during high-speed pitching and repetitive throwing workloads—helping pitchers maintain consistency through innings, bullpens, and long seasons.
  • Helps manage arm stress during high-velocity pitching
  • Supports durability through innings, bullpens, and long seasons.
  • Helps maintain consistency and accuracy under heavy workloads
  • Built for the demands of modern power pitching
  • Comfortable & easy to wear under uniform
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baseball pitcher throwing with kinetic arm in game
Built for Catchers

Constant Throws

Catchers make more throws in a single game than almost any other position on the field. From explosive pop throws to second base to the constant return throws back to the mound, the arm is under continuous demand. The Kinetic Arm provides dynamic shoulder and elbow support designed to help manage the mechanical load created by repetitive throwing while maintaining the quick release and mobility required behind the plate.
  • Helps manage arm stress from constant throwing behind the plate
  • Supports the shoulder and elbow during quick-release throws to the bases.
  • Helps maintain consistent arm strength through long innings
  • Supports durability during heavy defensive workloads
Built for Position Players

Powerful Defensive Throws

Position players rely on quick, accurate throws across the field—from turning double plays to making long throws from the outfield. These explosive movements place significant stress on the shoulder and elbow throughout games and practices. The Kinetic Arm provides dynamic support designed to help manage the mechanical load created by repeated defensive throws while maintaining full mobility and arm speed.
  • Helps manage arm stress during repeated defensive throws
  • Supports shoulder and elbow during high-effort fielding plays
  • Helps maintain arm strength through games and practices
  • Designed for everyday throwing demands across the field
Built for Two-Way Players

Pitching & Hitting Demands

Two-way players place exceptional demands on their arms by both pitching and hitting. High-velocity pitching combined with powerful rotational swings creates repeated stress on the shoulder and elbow throughout games and training. The Kinetic Arm provides dynamic support designed to help manage the mechanical load created by both throwing and swinging movements.
  • Supports shoulder and elbow during throwing and rotational swings
  • Helps maintain arm strength through dual-role demands
  • Designed for athletes who both pitch and hit
Built for Coaches & Trainers

Throw More BP

Coaches and trainers throw thousands of pitches throughout a season—during batting practice, drills, warmups, and player development sessions. This repetitive workload places constant stress on the shoulder and elbow over time. The Kinetic Arm provides dynamic support designed to help manage the mechanical load created by repetitive throwing so coaches and trainers can stay active on the field while working with their athletes.
  • Helps manage arm stress from repetitive batting practice throws
  • Supports shoulder and elbow during long practice and training sessions
  • Helps maintain arm endurance through daily throwing workloads
  • Designed for coaches and trainers who throw and demonstrate drills regularly.
Jason Colleran on field with several baseball players that are wearing the Kinetic Arm explaining significance of dual joint support
PROTECT THEIR ARM EARLY
Youth Baseball

For young baseball players, managing arm stress during growth and skill development is especially important. As youth athletes progress through repetitive throwing and swinging—often while navigating growth spurts—the shoulder and elbow can be exposed to increased mechanical demands.

The Kinetic Arm Youth Sleeve is designed to support young baseball players as they train, compete, and develop their skills through repetitive throwing and movement. Constructed with medical-grade materials and powered by MuscleWeb® technology, it provides dynamic, non-restrictive support to both the shoulder and elbow to help manage arm stress and support efficient mechanics during growth and high-use phases—without limiting natural motion.

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GAME CHANGING BENEFITS

ACROSS SPORTS

Where Performance Meets Protection

Athletes across multiple sports rely on the Kinetic Arm to support the shoulder and elbow during high-demand arm movement. Designed to help manage arm stress and fatigue while maintaining natural motion, it promotes efficient mechanics, enables more quality reps, and supports recovery and long-term arm health during throwing, swinging, serving, and other overhead activities.

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FEEL THE DIFFERENCE
HSA/ FSA Eligible
30-Day Returns
Available in Adult & Youth Sizes
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FREQUENTLY ASKED QUESTIONS IN BASEBALL

Kinetic Arm sizing is based primarily on height and weight, with bicep and chest measurements used to confirm the best fit. It is not the same as standard shirt sizing, so always refer to the official Kinetic Arm Size Chart before ordering.

If you are between sizes or unsure, send your height, weight, and a photo to sales@thekineticarm.com for a personalized sizing recommendation. Remember to select the correct throwing-arm side because right- and left-arm sleeves are not interchangeable.

The sleeve should fit snugly and securely while allowing unrestricted movement. The shoulder and elbow support zones must align correctly, and the straps should remain secure without causing discomfort. Because the sleeve is side-specific, selecting the correct arm and size is essential.

Yes. The K2 BioKinetic® Sleeve is eligible for purchase with HSA and FSA funds through our partner Truemed. Select the Truemed option at checkout to use your pre-tax health savings dollars. This makes proactive arm care accessible as a qualified healthcare purchase.

The Kinetic Arm provides dynamic support to the shoulder and elbow and helps reduce arm stress during throwing and swinging. However, arm pain may indicate an underlying injury and should not be ignored or thrown through. Stop the activity and consult a qualified healthcare provider before returning to play or using the sleeve for a pain-related concern.

No. The Kinetic Arm can support pitchers, catchers, position players, and two-way athletes. It is designed for repetitive overhead and rotational movements, making it useful during pitching, throwing, fielding, and batting.

Most players wear it on their throwing arm, but it can also support the lead or trail arm while batting. Kinetic Arm sleeves are side-specific, so a right-arm sleeve must be worn on the right arm and a left-arm sleeve on the left.

Baseball players can wear the Kinetic Arm whenever their arm is under stress—including practices, games, bullpen sessions, long toss, training, and recovery work. Many athletes use it consistently to support the shoulder and elbow, help reduce cumulative arm stress, and promote cleaner mechanics throughout the season.

There is no required wear schedule. Usage should be based on the athlete’s workload, comfort, and individual needs. Players experiencing pain or returning from an injury should consult their healthcare provider.

Yes! Pitchers have worn the Kinetic Arm during games under their uniform for years, including in nationally televised games on ESPN.

The Kinetic Arm is not a throwing aid and is not designed to increase velocity or provide a competitive advantage. It is protective arm support proven to help reduce dynamic stress on the shoulder and elbow without restricting range of motion or altering natural throwing mechanics.

Its efficacy is supported by independent research and professional biomechanical testing, including ASMI-associated research presented at the 2025 MLB Winter Meetings. The findings showed reductions in elbow torque and shoulder distraction force, with no significant change in throwing velocity or maximum external rotation.

Because equipment rules can vary by league or governing organization, we recommend confirming with the appropriate league official before game use.

No. The Kinetic Arm allows full range of motion and is designed to support your natural delivery without negatively affecting velocity. It does not create velocity or make you throw harder.

By helping reduce dynamic arm stress, reinforce the arm during high-stress phases of movement, and promote cleaner mechanics, it can support more consistent, high-quality training. Over time, that consistency may contribute to the strength and physical adaptations needed to develop—and more importantly, sustain—velocity.

No. The Kinetic Arm is not a performance enhancer and does not help an athlete throw harder or faster. It is a dynamic arm stabilizer designed to support the shoulder and elbow, help reduce dynamic arm stress, and promote cleaner mechanics without restricting natural movement.

The Kinetic Arm may help athletes perform more consistently by supporting the arm through repetitive throwing, but it does not replace strength, skill, training, or proper workload management.

No. The Kinetic Arm is a workload-management tool designed to support protection, performance, prevention, and recovery. Healthy athletes can wear it proactively to help reduce dynamic stress on the shoulder and elbow, promote cleaner mechanics, manage the demands of repetitive throwing, and support long-term arm health and performance.

It can be worn during practices, games, bullpens, long toss, and active recovery. Athletes experiencing pain or returning from an injury should consult their healthcare provider.

Yes. Youth baseball players can wear the Kinetic Arm during practices, games, bullpens, lessons, long toss, and other activities involving repetitive arm use.

Growth can temporarily affect strength, coordination, and mechanics as young athletes adapt to changing bodies and new movement patterns. The Kinetic Arm provides dynamic support to the shoulder and elbow to help reduce arm stress and reinforce the joints through high-stress ranges of throwing—without restricting natural movement.

It should be used alongside appropriate workload limits, rest, strength training, and proper coaching. Parents should check the sleeve’s fit regularly as their athlete grows.

No. The Kinetic Arm does not perform the throwing motion for the athlete or remove all stress from the arm. Players still use their muscles, move through a full range of motion, and experience the natural loading required to develop strength, coordination, and throwing-specific physical adaptations.

The sleeve provides dynamic support during the ranges where the shoulder and elbow experience the greatest stress. This helps distribute some of that stress while allowing the athlete’s body to continue doing the work.

Think of it as protective sports equipment—similar to supportive footwear or a baseball glove—not a powered throwing aid. Wearing it consistently does not replace training or create dependence; it adds protection during repetitive arm use.

Yes. Baseball players can wear the Kinetic Arm while batting, hitting, and throwing. Its dynamic, non-restrictive design allows a full range of motion while supporting the shoulder and elbow during high-demand rotational movements such as swinging.

The Kinetic Arm helps reduce dynamic arm stress without limiting bat speed or altering the athlete’s natural swing mechanics, making it suitable for practices, batting cages, warmups, and games. Players can wear it on either arm, but must select the sleeve designed specifically for the right or left side.

Yes, the Kinetic Arm can be incorporated into a supervised return-to-throw program as a dynamic support and workload-management tool. It helps support the shoulder and elbow without restricting natural movement, but it should not replace rehabilitation, rest, or medical guidance. Athletes recovering from an injury or surgery should use it under the direction of their healthcare provider.

PROTECT YOUR ARM. STAY IN THE GAME

Built for every position and level of play, Kinetic Arm helps baseball athletes manage arm stress, support recovery and perform with confidence all season long.

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