Size recommendations are generally based on height and weight.

Measurement guidelines and chest extension straps are available on shop page. If you need assistance, please send us a message and we can help make a sizing recommendation.

We offer a 30-day return policy for return and size exchange requests. Please refer to our Return Policies for details.

The Kinetic Arm stands apart from traditional arm braces or sleeves with its innovative, multi-patented MuscleWeb® technology. Unlike conventional arm supports that typically support only one joint (either the elbow or shoulder) and often restrict or limit movement, the Kinetic Arm provides dynamic, multi-directional support to both the elbow and shoulder simultaneously, without limiting range of motion.

This external web of support is designed to optimize mechanics, reduce arm stress, and minimize the risk of fatigue, pain, and injury. It is the only arm support scientifically proven to offload dynamic arm stress, allowing athletes and active individuals to perform at their best while reducing the risk of overuse injuries.

No, the Kinetic Arm does not restrict motion or alter mechanics during throwing or swinging. It is designed to provide full, unrestricted range of motion while delivering dynamic support to the elbow and shoulder. Its flexible design moves with your arm, ensuring natural movement without compromising performance or comfort. If any restriction is felt, simply adjust the chest portion of the sleeve or loosen the strap slightly for an optimal fit.

The Kinetic Arm reduces arm stress by dynamically stabilizing the elbow and shoulder during repetitive movements. Its revolutionary, multi-patented MuscleWeb® design delivers targeted support in high-stress ranges while allowing full mobility. This external support system has been scientifically proven to offload dynamic arm stress, providing multi-directional stabilization without restricting movement.

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The Kinetic Arm features a multi-patented MuscleWeb® design that mimics natural anatomical functions, providing reinforcement to muscles, ligaments, and joints for safer motion and reduced arm stress. This innovative technology uses strategically placed polymers to deliver targeted, multi-directional support to the elbow and shoulder, stabilizing joints during dynamic movements. The flexible web design offers activated support in vulnerable positions, offloading strain from critical areas while promoting optimal movement mechanics. This external reinforcement minimizes the risk of fatigue, pain, and overuse injuries, allowing athletes to maintain full range of motion and alleviate stress during repetitive arm actions.

The Kinetic Arm helps optimize mechanics by promoting safer anatomical ranges of motion, improving joint alignment, and stabilizing the elbow and shoulder to reduce dynamic arm stress. Its embedded MuscleWeb® design provides a web of support without restricting movement, reinforcing the arm and encouraging efficient movement patterns. In overhand throwing, where fatigue can cause the arm to lag behind during body rotation—leading to excess stress on the elbow, shoulder impingement, and strain on the labrum—the Kinetic Arm reinforces these vulnerable areas, helping athletes maintain better mechanics and safer ranges of motion. This makes it a valuable tool for athletes striving to protect their arms and enhance performance.

Because the Kinetic Arm helps to optimize mechanics and reduce arm stress it allows athletes to build strength and get more reps in with less fatigue and strain on their arm, so they can have a safer approach in gaining and sustaining velocity.

Athletes that have worn the Kinetic Arm have claimed it has helped them gain and sustain velocity over time, because they were able to train with higher intensity and safer progressions, because they have less arm stress and fatigue.

The Kinetic Arm K2 sleeves are designed to meet most regulations in sports.

However, rules are at discretion in different leagues and sports.

With regards to baseball and softball, there are no rules stating that you cannot wear a sleeve underneath uniform, as long as it is a solid color and is not distracting.

Little League Rule updated 2023 season: Rule 1.11a (3) Any part of the pitcher's undershirt or T-shirt exposed to view shall be of solid color. The pitcher's undershirt sleeves, if exposed, shall not be white or gray. Neoprene, if worn by a pitcher, must be covered by undershirt.

Materials:

K2 BioKinetic® Adult Sleeve - Nylon, Poly-Spandex blends.

K2 BioKinetic® Youth Sleeve - Nylon & Spandex blends.

The Kinetic Arm is designed to be worn during training sessions, practices, and games to help manage arm stress and reduce the risk of injuries. For optimal results, athletes often wear the sleeve during high-intensity activities and recovery sessions, as it supports performance while minimizing fatigue and the risk of overuse injuries.

The ideal frequency of use may vary based on individual needs, preferences, and activity levels. To determine the best approach for your routine, consider consulting with a coach or sports health professional who can provide personalized guidance based on your goals and workload.

No, the Kinetic Arm is not a performance enhancer but rather an athletic performance support designed to optimize mechanics by promoting a safer and more efficient arm path. It offloads dynamic arm stress by stabilizing the elbow and shoulder when approaching vulnerable positions and when stress is at its highest. It does not alter skill, delivery, technique, strength, conditioning, or overall training but provides essential support during high-intensity movements.

By reinforcing proper movement patterns, the Kinetic Arm helps athletes maintain cleaner mechanics while reducing strain during critical phases of throwing, swinging, serving, and hitting. Its activated support engages at peak stress points, preserving natural motion and performance while minimizing excessive arm strain.

No. Wearing the Kinetic Arm will not cause reliance or dependency.

Athletes are still be able to build strength and the necessary physical adaptations, because they still have to use their muscles to generate that force for that movement. In other words, the Kinetic Arm does not assist to move your arm for you.

There have been no signs or reports of muscle atrophy with long term use, because of the force generated that is required to move the arm during arm motions such as throwing, swinging, serving and hitting.

Peak stress happens in passive ranges during dynamic arm movements.

The Kinetic Arm is designed to give activated support to the elbow and shoulder in these ranges to help dampen arm stress.

If you are at all concerned about dependence or reliance, just use it on and off as a workload management tool especially on heavier workload or recovery days.

We offer a 30-Day Return policy for all size exchange and return for refund requests.

We strive for customer satisfaction with every purchase. However, we understand that sometimes a product may not meet your individual expectations.

We have made making return requests simple for our customers. All you need is your email and order number that was provided to you via email when you ordered. 

To initiate a return or exchange please click on the link below to make your request.  

Kinetic Arm Returns