Name: Dynamic Shoulder & Elbow Stabilizer - K2 Adult Sleeve
Brand: The Kinetic Arm
SKU: K2ASL6110
Price: 239.99 USD
Availability: InStock

Front view of male mannequin wearing the Kinetic Arm K2 adult sleeve, showing ergonomic design for shoulder and elbow support.

Dynamic Shoulder & Elbow Stabilizer - K2 Adult Sleeve

Side view of male mannequin wearing the Kinetic Arm K2 adult sleeve, showing ergonomic design for shoulder and elbow support.

Call out image on the features of the K2 Sleeve showing K-Tech Polymers, Bio Knit Weave, Detachable Straps, and polymers illuminated glowing blue.

$259.99 $239.99 Save $20.00

Shipping calculated at checkout.

Kinetic Arm is the world’s first dynamic, dual-joint arm support system designed to provide coordinated stabilization for both the shoulder and elbow during repetitive, high-demand movement. Constructed with medical-grade materials and powered by multi-patented MuscleWeb® technology, it delivers intelligent, directional support that responds to motion—engaging during high-stress phases without restricting natural range of motion, speed, or power.Informed by biomechanical research examining dynamic arm stress, Kinetic Arm is engineered to support efficient mechanics and help manage cumulative arm load during throwing, swinging, and overhead activity. It is worn by athletes and active individuals across baseball, softball, football, tennis, volleyball, golf, basketball, and other arm-intensive sports—from youth participation through elite levels of play.

NOT STANDARD SIZING: Please Refer to Size Chart

Products do not follow standard sizing - Please refer to sizing chart before ordering

Size

Small

Medium

Large

X-Large

Arm

Left

Right

NEED YOUTH SIZING? Shop Youth Sleeve.

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In stock, ready to ship
Inventory on the way

MEASURE TWICE - ORDER ONCE!

SHIPPING & DELIVERY:

Orders are typically processed within 1-2 business days (Monday–Friday). Orders placed before 12:00 PM EST or over the weekend will be processed and shipped on the next business day.

Domestic orders typically arrive within 2-5 business days. Once your order ships, you’ll receive a tracking number from the carrier to monitor your delivery status.

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 offer a 30-day return policy for returns and exchanges, with exceptions made for holiday extensions.

Holiday Season Extended Return Policy: To help with holiday shopping, we’re offering a holiday season return extension. Starting November 1, 2025, through December 31, 2025, orders can be returned or exchanged within 45 days of delivery.

Our standard 30-day return policy continues to apply for purchases outside of this period. Returns must be in original condition, and refunds will be issued to the original payment method.

To initiate a return or size exchange request please CLICK HERE

Gently-Used Gear: These products are discounted because they were either used as demos for events/shows, or were returned/exchanged within our 30-day return policy, and may have variations of minor aesthetic imperfections due to light usage that does not affect functionality of the product. By purchasing gently used gear from our website, you acknowledge that these items may exhibit signs of wear or usage and are not eligible for returns for refunds.

Final Sale Items: Products that are significantly discounted or listed as clearance and sold as final sale are not eligible for returns or refunds.

Please refer to our Return Policies Page for more details on processing and eligibility.

MUSCLEWEB® TECHNOLOGY

INNOVATIVE DESIGN

MuscleWeb® technology is a multi-patented system that integrates a performance-driven bio-knit weave with HD thermal-bonded K-Tech® polymers. Together, they form an external support network designed to respond dynamically during high-stress arm movement.

Strategically positioned K-Tech® polymer zones are engineered to engage during peak load phases, delivering targeted, directional support when the arm experiences the greatest mechanical demand—without restricting natural motion.

The result is movement-responsive support that helps maintain efficient mechanics, manage cumulative arm stress, and sustain consistent performance during repetitive, high-intensity activity.

WATCH HOW IT WORKS

Man wearing the Kinetic Arm compression and support sleeve

VALIDATED BY RESEARCH

TESTED & PROVEN

The Kinetic Arm has been tested using advanced IMU sensors and 3D motion capture technology. Independent studies performed have been validated by biomechanics experts and medical professionals.

✓ Significant reduction in varus elbow torque and dynamic arm stress during throwing motions
✓ Enhanced force distribution across the shoulder and elbow complex
✓ Maintained natural throwing mechanics with zero restriction to arm speed or movement patterns
✓ Optimized mechanics allowing athletes to maintain performance while managing arm stress
✓ Expedited recovery timeline – Case study documented athlete's return to competition within 5 weeks during medically supervised rehabilitation

Adult male using the men's Kinetic Arm shoulder and elbow support and compression sleeve for baseball.

STRESS REDUCTION SLEEVE

DYNAMIC SUPPORT

The K2 BioKinetic® Adult Sleeve is the world’s first dynamic arm support system designed to provide coordinated stabilization for both the shoulder and elbow without restricting natural movement. Informed by more than a decade of biomechanical research and evaluated through independent testing, this dual-joint design is engineered to help manage dynamic arm stress during high-intensity and repetitive activity—while maintaining mobility, speed, and control.

Built for athletes and active individuals who rely on their arms for throwing, swinging, overhead motion, and repetitive tasks, the K2 BioKinetic® Adult Sleeve supports efficient mechanics across a wide range of sports and activities. From baseball, softball, football, volleyball, tennis, pickleball, golf, basketball, javelin, and rodeo roping to physically demanding work such as construction, painting, and fitness training, it delivers non-restrictive, movement-responsive support designed to perform wherever the arm is pushed hardest.

TARGETED ELBOW & SHOULDER SUPPORT

Close-up of the Kinetic Arm K2 Sleeve on a shoulder and elbow, with glowing blue lines highlighting the patented MuscleWeb® support system.

Elbow Stabilization

K-Tech polymers overlay both the medial (inside) and lateral (outside) elbow joint, reinforcing muscles, ligaments, and tendons during vulnerable ranges. This helps minimize varus and valgus stress, reduce elbow torque, and maintain consistent arm path.

Close-up of a female athlete wearing the Kinetic Arm K2 Sleeve, with glowing blue lines highlighting the MuscleWeb® support system over the back (posterior) of the shoulder and elbow.

Shoulder stabilization

Focused support targets anterior (front) and posterior (rear) shoulder zones, including the labrum, biceps tendon, and rotator cuff. This reduces strain during overhead motions and supports proper mechanics during acceleration and deceleration phases.

DUAL-JOINT STABILIZATION

ZERO RESTRICTION

The K2 Sleeve delivers simultaneous shoulder and elbow support aligned with your natural movement patterns. Unlike traditional arm braces that restrict motion or basic compression sleeves that apply only uniform pressure, this dual-joint design provides strategic stabilization while maintaining full mobility.

Key Performance Benefits:

✓ Full range of motion maintained
✓ Strategic support during peak stress
✓ Lightweight, breathable Bio-Knit fabric
✓ Secure fit that doesn't slip

The K2 Adult Sleeve maintains proper arm mechanics during throwing, swinging arm motions.

Female softball pitcher wearing the Kinetic Arm Compression and Support sleeve.

Construction

Medical-Grade

Engineered with a precision bio-knit weave and HD thermal-bonded K-Tech® polymers, Kinetic Arm is constructed using medical-grade materials selected for durability, breathability, and performance. This advanced construction enables movement-responsive support that activates during high-stress phases of activity—without limiting natural range of motion, speed, or power.

Designed for all-day comfort and long-term use, the lightweight, low-profile build holds up to the demands of intense training, competition, and repetitive arm-intensive activity.

K2 BioKinetic® Sleeve

ADULT SLEEVE

The K2 Sleeve is constructed with a medical-grade bio-knit weave featuring 4-way stretch, designed to provide adaptive compression and balanced force distribution across the arm while preserving full mobility during dynamic movement. This advanced fabric supports comfort and flexibility without restricting natural motion.

Working in concert with HD thermal-bonded K-Tech® polymers, the bio-knit weave forms a coordinated dual-joint support system. The fabric helps distribute mechanical load evenly, while strategically placed polymer zones add directional reinforcement during peak stress phases—together supporting efficient mechanics during throwing, swinging, and overhead activity.

Closeup showing the 4-way stretch material of the Kinetic Arm compression and support sleeve

Male adjusting the adult men's Kinetic Arm compression and support sleeve.

Adjustable Support

Flexible Fit

The K2 Adult Sleeve includes a detachable chest strap adjustable for customized fit and an adjustable wrist wrap that prevents migration. Both straps feature a silicone matrix for anti-slip texture.

Adjust Shoulder Support:

Shift chest section away from dominant arm → increases front shoulder support
Shift chest section toward dominant arm → increases back shoulder support

This positions K-Tech polymer tension exactly where your motion needs it most.

Additional chest straps available separately.

Watch Fitting Video

WHAT CUSTOMERS ARE SAYING

REAL CUSTOMERS - REAL REVIEWS - REAL RESULTS

Dynamic Shoulder & Elbow Stabilizer - K2 Adult Sleeve

Enter your measurements

Recommended Size:

MEASURE TWICE - ORDER ONCE!

TARGETED ELBOW & SHOULDER SUPPORT

Elbow Stabilization

Shoulder stabilization

WHAT CUSTOMERS ARE SAYING