421 | Double Spring Steel Core Donut covers the knees, straps on the bottom.

Dual spring-type steel core knee brace - Medium knee support.

The 421 knee brace is designed to prevent knee injuries, pain, and twisting. It's a medium-level (LEVEL 2) knee support with a spring-loaded steel core to prevent unnatural twisting and bending of the knee. It provides maximum stability to the lateral collateral (LCL) and medial collateral (MCL) ligaments. Suitable for all types of sports including football, badminton, basketball, running, volleyball, skating, and walking, as well as for daily use. It's also ideal for those who have previously sustained injuries and need to prevent re-injury. It reduces impact on the knee and ligaments during movement and jumping, and prevents knee twisting.

(This model does not have the criss-cross straps around the kneecap; the 425 model adds these straps.)

Can be worn on both the left and right side.

Special features

• Experience superior firmness. Provides a more secure fit and allows for greater freedom of movement than wrap-around compression garments. Important for exercise!
• Four spring steel rods in total (two on each side). Helps increase stability and prevent unnatural twisting and bending of the knee at the intermediate level (LEVEL 2).
• The spring steel core helps to transmit force effectively, which is beneficial for people recovering from illness or the elderly.
• Helps prevent injuries to the anterior cruciate ligament (ACL), posterior cruciate ligament (PCL), lateral collateral ligament (LCL), and medial collateral ligament (MCL).
• The soft, non-irritating foam padding provides stability to the knee and patella, keeping them in the proper position.
• The upper and lower straps are specially designed to be adjustable to suit each individual's needs.
• Curved edges prevent irritation.
• High-performance neoprene is a high-quality synthetic rubber with a micro-cell structure. It is non-stretch, lightweight, soft, and more durable than regular synthetic rubber. It is latex-free, retains temperature, provides a snug fit, and offers muscle support at the joints.

*Gear for sports, travel, and tourism should not be worn for more than 2-3 hours.
*This device cannot replace medical treatment. Always consult a doctor for injury diagnosis and treatment.