Improves stability and comfort in your shoe for enhancing the function of the entire lower leg - including knees and ankles. Stable 26 footgear enhances stability of the rear foot for better fit, improved comfort, and performance resulting in reduced blister formation and increased blood flow. Great for multiple sports such as baseball, soccer, tennis, football, crossfit & many more! Material - Breathable ergonomic nylon. Cuff Heights - Mini crew, quarter crew. Silicone Pads - 4mm and 6mm medial and lateral silicone pads. Medial and Lateral Silicone Pads customize fit to improve comfort and performance. Enhanced heel cap withstands high forces. Contoured elastic arch keeps footgear in place for additional support and enhanced fit. Hand-linked seamless toe reduces friction.