If you have questions please contact us directly by filling out the form below.

Size recommendations are generally based on height and weight.

Additional measurement guidelines are available on shop page and chat box on website.

If you need assistance, please send us a message and we can help make a sizing recommendation.

Extensions straps are also available during checkout process if needed for larger chest sizes.

Please contact us at - if you need a chest strap, and did not include in your original order.

We offer a 14-day return policy for return and size exchange requests. Please refer to our Return Policies for details.


Please hand and wash with cold water and gentle cleanser and let air dry.

You are welcome to use gentle disinfectants and odor eliminator cleansers, just be sure to not use harsh chemical products or sprays.

To help ensure longevity, please do not iron, or dry clean, or put in washer or dryer. Exposure to heat can compromise adhesives and the integrity of polymers. So please do not iron, dry clean, or leave out in high temperatures for prolonged periods of time.

You will receive fitting instructions in a video link via email after your purchase. These videos are also available on our website on our FAQ page.

These videos demonstrate how to assemble, customize fit, and make adjustments to help optimize support.

There is also an insert card and packing slip included in shipment with each purchase, that provides a QR code for video fitting instructions.

All fitting and adjustment instruction videos are also available on Kinetic Arm YouTube Channel.

Yes, it is normal to have a little bagginess around the shoulder, this slack allows for full range of motion without restriction.

Please refer to fitting instruction video for a visual demonstration on how to make slight shifting adjustments to accommodate different ranges and levels of shoulder support.

We strive for customer satisfaction with every purchase. However, we understand that sometimes a product may not meet your individual expectations. That's why we offer a 14-Day Return and Exchange policy. 

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

No, the K2 sleeve does not have to be secured exactly at the wrist for it to work properly. The sleeve will still function as intended as long as the elbow polymers are overlaying the medial side of the elbow.

Whether or not to wear a shirt underneath the Kinetic Arm is largely a matter of personal preference.

It is advisable to try wearing the Kinetic Arm with and without a shirt during training or practice to determine which options feel more comfortable and allow you to perform your best. 

Some individuals find wearing a fitted shirt or base layer underneath adds an extra layer of comfort to help prevent any potential irritation or rubbing against the skin. If you have sensitive skin or are prone to chafing, wearing a fitted shirt underneath may provide an additional barrier and enhance overall comfort.

The Kinetic Arm base layer is available on our online stores, which has an ergonomic design to help keep seams off high abrasion areas, increasing durability and comfort, along with thumb access holes to help keep base layer in place while putting on Kinetic Arm or making adjustments. 

Rules are at discretion in different sports and leagues.

It is designed to meet most regulations, and can easily be worn under uniform in game; it just has to be a solid color and not distracting.

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.

The Kinetic Arm K1 and K2 have been worn in games for over 5 years, from youth sports to all the way up to the D1 level and professional leagues.

*Professional/Major leagues may be required to wear sponsorship or uniform color sleeve when in game.

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.

The Kinetic Arm K2 Sleeve is not a Neoprene sleeve.

K1 Brace - Polyester, Silicone, Spandex, Nylon, Polycarbonate, and TPR Neoprene seams.

K2 Adult Sleeve - Nylon, Polyester & Spandex

K2 Youth Sleeve - Nylon & Spandex.

The K1 is a dynamic soft brace that is designed for recovery & rehabilitation, because it has a multi-strap system that can be adjusted to customize the fit and vary the support as needed for progressions or different arm care needs.

The K2 Sleeve is designed for performance and protection, and comes in adult and youth sizes. Players at all levels and ages, who participate in any throwing, swinging, or hitting sports wear this kinetic sleeve to help safeguard their arm while in practice or game under their uniform.

Some athletes choose to alternate between both based on their workload and arm care needs.

Yes. The K2 Youth Sleeve scales down to ages 6+ .

The K1 and K2 are used in both youth and teen sports depending on size and arm care needs.

The Kinetic Arm works by giving unrestricted support and stability to the shoulder and elbow while throwing and swinging.

Wearing this external arm support system has been scientifically proven to offload dynamic arm stress by providing multi-joint stability and support during repetitive arm actions.

It works because it has a unique patented MuscleWeb™ design. This innovative design has a strategic network of polymers that provide a web of unrestrictive flexible support to the arm to help reinforce joints, muscles, and ligaments while throwing and swinging.

The Kinetic Arm is backed by data and published research scientifically proving to significantly reduce elbow torque and arm stress while throwing that can lead to fatigue, pain, and overuse injuries.

This is why Kinetic Arm has been regarded by customers as the best shoulder brace and best elbow brace for dynamic arm protection in baseball, softball, volleyball, tennis, football and other sports.  

Yes. The Kinetic Arm is backed by data and published research. Available on How it Works page on website.

No. The Kinetic Arm brace does not restrict motion or change delivery. These dynamic sleeves are lightweight, flexible, and designed to synchronize with all arm actions. Every sleeve can be adjusted to customize fit and tension to support different arm care needs pertaining to the shoulder and or elbow. These dynamic arm stabilizers can be worn over or under uniform as the best arm sleeve for tennis elbow rehab. 

(If any restriction in range of motion is felt, simply shift the chest part to the glove side or loosen the strap).

Does the shoulder elbow brace restrict movement?

No, the shoulder elbow brace does not restrict movement. Engineered with flexibility in mind, this dynamic sleeve is designed to synchronize with various arm actions. However, if you feel any sensation of restriction, a simple adjustment can be made to the sleeve's tension or positioning.

The Kinetic Arm has a built in patented MuscleWeb™ design that has been scientifically proven to offload dynamic arm stress.

This strategic network of polymers reinforces and stabilizes the shoulder and elbow to offload stress when peak stress is the highest, when the arm is in weakest ranges while throwing and swinging.

Wearing this external support helps to offload the muscular system and connective tissue during repetitive arm actions to help alleviate stress that can lead to fatigue, pain, and overuse injuries.

The Kinetic Arm brace and sleeve can help optimize mechanics by promoting cleaner arm actions, and not letting your arm lag behind or go into vulnerable positions while throwing and swinging.

Wearing this external layer of arm support helps absorb stress when peak stress is the highest, and when the arm is in the weakest ranges during acceleration and deceleration.

Repeatable arm actions can cause fatigue where the arm will start to lag behind as the body rotates which can cause excess stress on the elbow and impingement at the shoulder, and more stress on the labrum.

The MuscleWeb™ design is flexible and is strategically designed to pull in the same direction as your muscles to reinforce efficient movement patterns.

Many regard it as the best arm brace for tennis elbow recovery and sports rehab. Do consult your doctor before ordering the K1 arm sleeve online today!

No. There have been no signs or reports of muscle atrophy with long term use, because of the force generated that is required to throw, hit, or swing.

Peak stress happens at end range and wearing the Kinetic Arm just offloads the stress in that passive range where the muscles cannot stabilize joints. The MuscleWeb™ polymers absorb some of the stress and help stabilize joints and decrease distraction forces during repetitive or explosive arm actions.

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.

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

No. The Kinetic Arm is not a performance enhancer. It is a stress reduction sleeve, that helps to safeguard the arm to help aid in arm overuse injury prevention.

The Kinetic Arm does not change delivery, influence skill, technique, strength, conditioning, or overall training.

It is an arm care tool that helps keep the arm in anatomically safer ranges to help promote cleaner arm actions and offload stress when the arm is in the weakest ranges while throwing, swinging, or hitting.

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.

Unlike traditional arm braces that are designed to immobilize or limit motion, the Kinetic Arm gives full range arm support without restriction while throwing, hitting, and swinging.

It is different than traditional athletic or compression sleeves because it has an embedded patented MuscleWeb™ design that has a strategic network of elastomers engineered to give dynamic multi-joint support that has been scientifically proven to offload dynamic arm stress.

Protective shoulder guards and custom elbow guards are designed to reduce injuries from impact in sports.  These guards can be rigid or soft and can be referred to as protective pads. 

Elbow pads and shoulder pads are worn to prevent or reduce injuries during a fall or collision.  These protective guards and protective pads are useful in many sports including baseball, softball, volleyball, and football.

The Kinetic Arm is designed to offload dynamic arm stress while throwing, swinging, and hitting. It is not a shoulder or elbow guard in the sense that it is not a shoulder pad or elbow pad designed to absorb impact that could come from a fall or collision.

YES! It is the first dynamic arm stabilizer to be introduced to the sports industry.

Click here for Patent Info

Although the Kinetic Arm offers external support arm support it is not intended for heavy lifting and thus might not meet your expectations. The Kinetic Arm is designed to offload dynamic arm stress while throwing, swinging, and hitting. 

Yes, the Kinetic Arm can be worn while training, to help offload stress during training exercises for added protection and support.


We normally ship orders (Monday - Friday) and within 1-2 business days of order placement.

Please allow 2-4 business days for domestic orders to arrive.

International shipment capabilities are currently limited, and are subject to custom fees which can take up to 7-21 business days to arrive.

Returns & Exchanges

We have a new 14-day return policy for returns and exchanges.

To initiate a return request please CLICK HERE

Please refer to our Return & Exchange Policies for more details.



  • Do not put in washer or dryer
  • Do not iron or dry clean
  • Do not use softeners or harsh chemicals sprays.

Be sure to re-attach straps after each use to prevent fraying or snagging.


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