Hollow Yarn Knitting Knee Protector

• 3 Dimentional Knitting，provided excellent wraping tobetter protect joint and mucle, with extra compression force to stimulate blood circulation, 
• Polyester fiber with reinforced hollow structure can maintain insulation, improve drying to provided comfort.
• Ligter than regular fiber with softer touch, less sense of weight
• Size: S/ M/ L/ XL