Here is another full body tracker that brings your legs into VR. The StonX CBT full body tracker comes with 6 wireless tracking pucks that you can upgrade to 8. It has a single dongle that connects to your PC. These pucks sync to your VR headset in SteamVR. The battery life lasts up to 20 hours.
StonX will have an open sourced software. It comes with 6 straps that are flexible and fit most sizes. This VR body tracker is compatible with VRchart, Neos, Blade & Sorcery, and other popular SteamVR games.