JK-2
JK-2 Precisely compress below the kneecap
JK-2 Jumper's pad
JK-2 Comfortable fit
JK-2 Reduce the strain around the kneecap
JK-2
JK-2 Precisely compress below the kneecap
JK-2 Jumper's pad
JK-2 Comfortable fit
JK-2 Reduce the strain around the kneecap
youtubeiconJK-2

ZAMST JK-2

Moderate

Reduce the strain on below the knee for jumpers

A solution for problems with the knee during jumping sports. A unique-shaped jumper's pad reduces the strain on the knee during jumping.

Where to Buy
Product availability and assortment may vary by country or region. Please refer to your local website for details.

Product Description

JK-2 Precisely compress below the kneecap

Precisely compress below the kneecap

Accurate compression with a unique dual-stage jumper's pad reduces the strain on below the knee. Compression level can be easily adjusted with the under-strap.

JK-2 Comfortable fit

Comfortable fit

Stretchable double raschel knit fabric with breathability and proper compression provides comfortable fit and support. It enables to bend and stretch the knee smoothly.

JK-2 Reduce the strain around the kneecap

Reduce the strain around the kneecap

A semi-circular shaped patellar pad and the thigh belt gently and precisely support the kneecap to reduce the strain.

Size Chart

Measure the circumference of the thigh 16 cm above the center of the kneecap. If your measurement falls between two sizes, choose the larger one.

JK-2 chart

Size

S

M

L

LL

3L

Circumference of the thigh for JP/Asia model

40 - 43 cm

43 - 46 cm

46 - 49 cm

49 - 52 cm

52 - 55 cm

Circumference of the thigh for US/EU model

43 - 46 cm
(17.0 - 18.0 inches)

46 - 49 cm
(18.0 - 19.25 inches)

49 - 52 cm
(19.25 - 20.5 inches)

52 - 55 cm
(20.5 - 21.75 inches)

55 - 58 cm
(21.75 - 23.0 inches)

scroll to the right

Instruction

Recommended Products

Bodymate knee
None

ZAMST Bodymate Knee

For light compression and protection of the knee

Knee RK1 plus
None

ZAMST RK-1 Plus

Reduce the strain on the outside of the knee for runners

Knee RK2
None

ZAMST RK-2

Reduce the strain on below the knee for runners

Knee EK1
Light

ZAMST EK-1

Light support for the entire knee

Knee EK3
Light

 ZAMST EK-3

Support the entire knee for horizontal balance

Knee JK band
Light

ZAMST JK Band

Reduce the strain on below the kneecap

Knee EK5
Moderate

ZAMST EK-5

Support the entire knee firmly for horizontal balance

Knee JK1
Moderate

ZAMST JK-1

Reduce the strain on below the knee in a period of growth

Knee ZK motion
Moderate

ZAMST ZK-MOTION

Comfortable knitted knee brace providing moderate support with excellent mobility

Knee ZK protect
Strong

ZAMST ZK-PROTECT

Strongest support for inhibiting lateral and anterior movement

FAQ for this product

arrow top icon
Does wearing a knee brace make it difficult to use your knee?

Zamst products are designed for sports activities, so you may find that it is not as difficult to move as you might worry. In practice, you should be able to move comfortably.

arrow top icon
How do I wash the brace?

Most braces are machine washable. After washing, hang them to dry in the shade. Please avoid washing with light-colored items, as colors may fade or transfer to other fabrics. When washing with other clothes, use a laundry net to prevent fraying or streaking. *Hand washing is recommended for some products. Please refer to the instruction manual for specific details (instruction manuals are also available on each product page of the Zamst website).

arrow top icon
I checked the sizes listed on the website, and they are too tight. Should I go up one size?

The Zamst Knee brace is designed for sports use, providing strong compression to apply firm pressure. If you do not require high compression, we recommend choosing one size larger.

arrow top icon
Should the brace be wound tighter?

First, ensure you have the correct size and follow the instructions in the manual for proper application. Be cautious not to tighten it too much, as excessive tightness can lead to congestion

arrow top icon
Should the ZAMST knee brace be worn over tights?

Zamst Knee brace is designed to be worn directly on bare skin and is not recommended to be worn over tights. If worn over tights, depending on the material of the tights, the brace may slip off and the desired effect may not be achieved, or the increased thickness of the back of the knee may cause discomfort or pain when bending the knee.

arrow top icon
When I measure the size of the area for the brace, the figure is on the borderline between size S and M. I am not sure which size I should choose.

If the size is borderline, we recommend the larger size.

arrow top icon
Can you stop wearing a brace once the pain is gone?

From Dr. Evan Not necessarily. One of the biggest mistakes I see is athletes assuming they're fully recovered just because the pain has gone away. Pain is only one piece of the puzzle. Before I recommend discontinuing a brace, I want to see good strength, balance, confidence, and sport-specific movement. Can you jump, cut, sprint, and land without hesitation? That's what matters. Many athletes feel fine before their body is truly ready for the demands of competition. In most cases, I recommend gradually reducing brace use rather than stopping all at once. The goal is to make sure you're not only pain-free but also physically prepared to handle your sport safely.

arrow top icon
Knee sleeve vs knee brace: which do you need?

From Dr. Evan I usually explain it this way: a knee sleeve is primarily about compression and comfort, while a knee brace is designed to provide more support and stability. Many athletes wear sleeves because they like the warmth, compression, and increased awareness they provide. A brace is generally the better option when there is a history of injury, instability, or a specific condition requiring additional support. As a physical therapist, I help athletes match the tool to the problem. If you're simply looking for mild support and comfort, a sleeve may be enough. If you're trying to manage instability or return from injury, a brace may be more appropriate.

arrow top icon
When should you start wearing an ankle or knee brace?

From Dr. Evan As a sports physical therapist, I don't believe everyone needs a brace. But there are situations where a brace can be a smart tool. If you had just had an acute injury such as an ankle sprain or knee sprain a brace is a great tool during the protection phase to reduce the risk of further injury and provide stability and comfort. In my clinic, I often see athletes wait until they've been injured multiple times before thinking about prevention. A brace can provide an extra layer of protection during high-risk activities while you're continuing to build strength, balance, and movement control. The goal isn't to rely on the brace—it's to use it strategically to help keep you healthy and performing at your best.

Evan Jeffries, PT, DPT, MS

EVAN JEFFRIES is a physical therapist with a Doctorate in Physical Therapy (DPT) from the University of St. Augustine for Health Sciences. He has vast knowledge of the musculoskeletal system and has treated many orthopedic conditions by bringing a proactive approach to healthcare and lifestyle.

brace finder float cta