This was just an attempt to pack as much gear onto a single leg-mountable unit as possible. Even though it weighed several pounds, it was surprisingly secure on the leg, and all the gear was quite secure and fairly easily accessible. The section on the right had some free range of motion so the Supersheath could conform to your leg and be more comfortable and secure than otherwise.
Here's a list of the gear used:
Gerber LMF II Leg Strap