Leatt 5.5 Enduro Pant - BlackOVER THE BOOT ENDURO PANTS WITH INTERNAL KNEE BRACE SYSTEM The off road, over the boot version of our top line 5. 5 MX pants. These pants are water resistant and dirt repellent with ventilation zippers for superior performance in most climates. Full grain leather knees offer the ultimate in wear resistance as part of our multi layered signature Internal Knee Brace System (IKS). This reduces the wear and tear from knee braces using different materials