Fox racing launch pro d3o knee guardsfox racings launch pro d3o knee guards have been designed in conjunction with their elite level race team and lift performance levels to new heights leveraged from fox racings relationship with d30 who are the worldwide leaders in impact reducing materials these knee guards combine d30s tech with a removable hard cap to ensure bulletproof strength and am performance cool dry and comfortablethese knee guards are remarkably flexible to provide comfort and