Features:

•  Locked in EVA foam (ethylene-vinyl acetate),
  a combination of thick and thin padding with an ergonomic design that “locks in”
  Your knees for optimal fit and maximum protection.
• ultra-tough ballistic nylon that resists tears and protects your knees from skids and scrapes
• a curved cap that allows better fit and protection.
• Perforated Neoprene allows for better ventilation, keeping you cool and dry.