DYNAMIC ARM SUPPORT FOR SOFTBALL
DYNAMIC ARM SUPPORT FOR SOFTBALL
The world’s first non-restrictive arm stabilizer validated to reduce arm stress.
ARM SUPPORT BUILT FOR MOTION
Until now, no softball sleeve has offered unrestricted elbow and shoulder support scientifically proven to reduce dynamic arm stress that can contribute to fatigue and overuse strain. Unlike standard arm sleeves or braces, the medical-grade K2 BioKinetic® Sleeve utilizes multi-patented MuscleWeb® Technology—a flexible design that functionally reinforces the arm during motion to help optimize mechanics and reduce dynamic arm stress.
This biomechanical stabilizing sleeve allows full range of motion while optimizing mechanics, helping athletes manage arm stress and reduce overuse-related concerns. Whether you're focused on performance, protection, active recovery, or managing arm stress, the Kinetic Arm offers the only dual-joint support solution for dynamic arm care.
NO RESTRICTION
ACTIVATED SUPPORT
BUILT FOR SOFTBALL
DYNAMIC SUPPORT
Softball players face unique arm stress from windmill pitching mechanics and repetitive throwing across all positions. The Kinetic Arm delivers medical-grade dynamic dual-joint stabilization that reinforces the elbow and shoulder without limiting movement. Built with multi-patented MuscleWeb® technology, it helps reduce mechanical strain during high-volume training and competition—supporting arm health and consistent performance throughout the season.
ADAPTIVE SUPPORT FOR
THROWING MOTIONS
Both underhand and overhand pitchers place significant stress on the shoulder and elbow during repetitive throwing. Recent research shows that forces during windmill fast-pitch delivery are comparable to overhand pitching—both contributing to strain and fatigue that can lead to overuse-related concerns.
The Kinetic Arm is redefining softball arm support. This dynamic stabilization sleeve can be worn during practice and games to help reduce excess stress without compromising velocity, accuracy, or performance.
WHY IT IS ESSENTIAL
Dual Joint Support
Dual-joint support is essential for softball players during dynamic movements like throwing and swinging, where the shoulder and elbow work in sequence. The Kinetic Arm reinforces both joints simultaneously, providing targeted stabilization in high-stress phases where the arm is most vulnerable. This external support helps promote optimal mechanics, reduce joint strain, and maintain proper alignment—allowing players to perform with greater efficiency and confidence.
INTELLIGENT DESIGN
MOTION SUPPORT
MuscleWeb® Technology is a multi-patented, bonded polymer network engineered to deliver dynamic, flexible support to both the shoulder and elbow—without restricting natural movement. Constructed with a performance-driven bio-knit weave and strategically placed K-Tech® polymers, it works in sync with the arm’s natural motion to reinforce both joints, help manage mechanical stress, and support efficient mechanics.
Unlike rigid braces or basic compression sleeves, MuscleWeb® provides activated, movement-responsive support—engaging during high-stress phases to enhance stability while preserving full range of motion. This adaptive design makes it well suited for the repetitive, high-output demands of softball, baseball, and other throwing and swinging sports.
TARGETED ELBOW & SHOULDER SUPPORT
ANTERIOR SHOULDER SUPPORT
Embedded polymers overlay the front of the shoulder, creating supportive tension to reinforce the joint and maintain stability during movement. This polymer network helps manage arm positioning by preventing it from lagging behind as the trunk rotates during dynamic motions—reducing strain on key shoulder structures and supporting more efficient movement patterns.
ELBOW STABILIZATION
Built-in polymers strategically overlay the entire elbow, providing targeted support to the medial and lateral sides during dynamic arm movements. These external polymers help reinforce the joint, ligaments, and forearm muscles, offering essential stabilization during phases like external rotation and late cocking in throwing, swinging, and hitting. By stabilizing the elbow in passive ranges where stress is highest, it helps manage torque and dynamic load, promoting smoother, more efficient movement.
POSTERIOR SHOULDER SUPPORT
Embedded polymers overlay the back of the shoulder, providing dual-joint stabilization during arm movements. Acting as an active constraint, this polymer web minimizes joint stress by offering multi-directional support to muscles and ligaments during dynamic motions. It allows full range of motion while reinforcing the posterior shoulder to help manage stress and support controlled movement of the scapula and humerus as muscles elongate during arm action.
VALIDATED BY RESEARCH
TESTED & PROVEN
Kinetic Arm dynamic stabilizers are informed by more than a decade of research and testing focused on arm biomechanics and movement efficiency. Independent studies using advanced measurement tools have examined their impact on dynamic arm stress, with findings reviewed and evaluated by experts in biomechanics, sports science, and sports medicine.
RECOMMENDED BY MEDICAL PROFESSIONALS
★★★★★"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 athletes."
Dr. Ryan Balmes![Image of Dr. Ryan Balmes Physical Therapist]()
Board Certified clinical specialist in orthopedics and sports physical therapy.
★★★★★"The data shows that the Kinetic Arm could definitely have an impact in reducing overuse injuries."
Dr. Lawrence Lemak![Testimonial Image of Dr. Lawrence Lemak Co-Founder of ASMI]()
Co-Founder of American Sports Medicine Institute & The National Center for Sports Safety
★★★★★"Excellent Product! 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. The Kinetic arm has been a game changer in my care plans for players returning from surgery or injury. I highly recommend!"
Dr. Alex Beebe![Image of Dr. Alex Beebe Physical Therapist]()
PT, DPT, OCS, CSVS, CMT
★★★★★"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. Highly recommend 10/10!"
Dr. Nathan Teter![Image of Dr. Nathan Teter Physical Therapist]()
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 elbow and its non contractile structures, while at the same time allowing for sustained duration and intensity for practices sessions with overhead athletes."
Tyler Wallace![Testimonial Image of Dr. Tyler Wallace Physical Therapist]()
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 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![Headshot of Dr. Edward Kim]()
PT, MTC, TPI0-M3
★★★★★"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![Image of Dr. Jason Weeks D.C.]()
DC, owner of Marietta Physical Rehab and Team Physician of X3 Sports
★★★★★"I have been a Physical Therapist for over 20 years - more importantly, I am a father whose son plays high school baseball. My son had an arm issue. We have used the Kinetic Arm essentially every throw he has made for the last 2 years. 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![Headshot of Physical Therapist Dr. Shannon Loy]()
PT, MPT, OCS Clinical Director Advance Performance
BENEFITS FOR SOFTBALL PLAYERS
MANAGE ARM STRESS
Kinetic Arm provides dynamic, dual-joint support to both the shoulder and elbow—helping manage arm stress during repetitive throwing and windmill pitching without limiting mobility. By reinforcing both joints together, it helps offload mechanical load during high-stress phases of movement, supporting consistent performance while helping athletes manage fatigue from high-volume play.
OPTIMIZE PERFORMANCE
Designed to work with the arm’s natural movement, Kinetic Arm supports efficient mechanics by providing targeted stabilization through vulnerable ranges of motion. This movement-responsive support helps players maintain control and consistency during repetitive actions, allowing them to train with confidence and perform at a high level without unnecessary strain.
RECOVERY & LONGEVITY
Kinetic Arm is built to support athletes through training, competition, and recovery by helping manage cumulative arm stress over time. By promoting proper joint alignment and reinforcing efficient movement patterns, it supports recovery between sessions and helps athletes stay durable throughout long seasons of repetitive arm use.
WORN IN PRACTICE &
WORN IN GAMES
Kinetic Arm is worn by softball players at every level—including pitchers, catchers, and position players—during both practice and in-game competition. Designed to support performance through repetitive, high-demand arm use, it provides dynamic, non-restrictive support that helps athletes manage workload and maintain consistent mechanics throughout training and play.
By delivering coordinated shoulder and elbow support during critical phases of movement, Kinetic Arm supports efficient motion and helps players stay confident and durable across long practices, intense games, and demanding seasons.
