How does this feel on the back of knee? Does it pinch or cause pain at back of knee?

No, it doesn’t cause any pain or a pinch. I hardly noice when I am up and about. Sitting doesn’t cause it either.

Do they actually contain copper?

I believe there is copper in the weave. These are the third thing I have bought from Copper Support. I love these, everything I have bought has worked great.

Do they stretch out after repeated use?

Mine stretched to fit better and does not slip at all, even after all this time. My knee swells during bad weather and seems to actually pinch my upper leg slightly when this happens. I have been using this since February 2022 5 days a week for up to 8 hours a day. Still going strong.

I am a Mechanic for a living, and have arthritis is both knee's. Will this hold up long term?

Yes, my husband is 97 and 17 years ago he had his other knee replaced, but at this time the doctor wouldn't take the chance. This support has been wonderful. It is high quality, I hand wash it and he wears it almost every day (because some days he does not need it;;-)

JIUFENTIAN (2Pack)Copper Knee Sleeve For Arthritis Pain And Support-Copper Knee Brace For Knee Pain Relief, Workout, And Sports (X-Large)

JIUFENTIAN (2Pack)Copper Knee Sleeve For Arthritis Pain And Support-Copper Knee Brace For Knee Pain Relief, Workout, And Sports (X-Large)

Product ID: 553541579

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Details

Brand
JIUFENTIAN
Size
X-Large
Specific Uses For Product
Arthritis Pain
Age Range (Description)
Adult
Colour
Tan

🦵60% copper ion fiber for pain relief

⚙️3D weaving tech for breathability & quick dry

🏋️‍♂️Non-slip grip stays put during intense workouts

Description

🦵 Elevate your knee game — pain relief and performance, all in one sleek sleeve!

STAY PUT PERFORMANCE - Non-slip grip technology ensures your knee sleeve stays perfectly in place through every run, lift, or game.
ADVANCED 3 D WEAVE COMFORT - Experience breathable, sweat-absorbing fabric that dries fast and keeps you fresh all day.
DYNAMIC COMPRESSION SUPPORT - Ergonomic design disperses knee pressure, improves circulation, and protects against injury.
COPPER INFUSED HEALING POWER - Harness 60% copper ion fiber to reduce swelling and soothe arthritis pain with every wear.
VERSATILE ACTIVE LIFESTYLE ESSENTIAL - Perfect for athletes, outdoor enthusiasts, and professionals needing reliable knee support daily.

The JIUFENTIAN Copper Knee Sleeve (2-Pack, X-Large) combines 60% copper ion fiber with cutting-edge 3D weaving technology to deliver superior compression, breathability, and non-slip support. Designed for arthritis pain relief and active lifestyles, it enhances blood circulation, reduces swelling, and stays securely in place during sports or daily activities.

Specifications

ASIN	B09SGZNVQT
Age Range (Description)	Adult
Age Range Description	Adult
Best Sellers Rank	#162,811 in Health & Personal Care ( See Top 100 in Health & Personal Care ) #1,339 in Knee & Leg Braces
Brand	JIUFENTIAN
Brand Name	JIUFENTIAN
Closure Type	Pull On
Colour	Tan
Country of Origin	China
Customer Reviews	4.4 out of 5 stars 2,720 Reviews
Item Dimensions	31 x 21 x 1 Centimeters
Item Weight	150 g
Manufacturer	JIUFENTIAN
Material	Nylon
Material Type	Nylon
Number of Items	2
Part Number	JF-P2KB210104
Product Care Instructions	Hand Wash Only
Size	X-Large
Special Features	Non Slip
Specific Uses For Product	Arthritis,Pain Relief,Swelling,Muscle
Sport Type	Baseball, Basketball, Cycling, Running, Tennis

Reviews

A**B

Good supportive knee protector that stays in place and allows freedom of movement

2.01.2026

A**R

He must have if you have bad knees

9.02.2025

L**I

its very good

7.10.2024

K**H

Excellent!

8.02.2025

G**I

Nice and stretchy

12.04.2024

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The product quality is outstanding. Exactly what I needed for my work.

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