Empire INVERT KNEE PADS zE - From beginner to Pro, these pads are built for maximum comfort and protection. Whether you're storming the castle or diving into the snake, the thick thermal-formed, dual-density knee pads can take whatever you throw at them. Designed with an open 4-way stretch mesh back opening to eliminate binding and allow the pad to breath. The pre-curve knee cup and airprene sleeve keep the pads locked where they belong - up on your knees.