Running knee support with a design to reduce stress. - Brand: ZAMST - Model Name: RK-1 Plus - Application: Running support - Color: Black - Features: Reduces stress on the outside of the knee - Size: Right L - Retail Price: ¥4,290 Purchased in January 2026 at a sports shop. For those who experience pain on the outside of their right knee. For those suffering from iliotibial band syndrome or runner's knee. This is a used item as it has been opened.