I don't supply knife sheaths with the leg panels , as I do not know what knife you may have . However , I can obtain them from G-Code if I knew what knife you have . Most any flat Kydex knife sheath will work . Best is the knife sheaths that have the 2 sets of leg strap slots within them . Using the upper slots , thread the velcroed strap within and secure them . Second strap goes up above to secure the knife sheath's belt hanger to panel hanger . Always dummy loop or secure by other means as a precaution . Bottom of the panels are left open , due to longer knives . There is a D-ring to secure bottom of knife sheath as well if needed .
Now if you do not have leg strap slots on your sheath . Some sheaths have gromment that hold the sheaths parts together . Then you may hand sew or attach by means of cords or ties to the mesh suspension platform . Even a leather knife sheath , you can take a 1/64 drill and make holes to allow thread to pass through to secure to the mesh platform as well .
Keep in mind , the thinner the sheath , the more comfortable you will maintain . My thoughts of allowing the knife sheath behind panels were to allow more space on the belt and removing the need of extra leg straps .
If you call the shop , any of the girls may help you . However , they will assist you in the best way they can . If you need a ear full , then ask for me !
Gene