Rebuff Reality Trackstraps Elite - Compatible with Vive Tracker 3.0 & 2.0, HTC Vive Ultimate Tracker (Sold Separately) - 2 Feet Adjustable Straps for Full-Body VR Tracking - Perfect for Beat Saber, VRChat & VR Fitness Games

I'm using these to replace the simple and basic "loop" straps that usually go on your feet for full body tracking. These use a special dual-strap design where it loops both underneath your foot and behind your ankle.The strap itself is very snug and comfortable, which is surprising for something that wraps underneath your foot. It helps that the part that actually wraps underneath the foot is very thin, and the part on the sides and around your ankle is elastic but also soft. It makes for an oddly comfortable experience!The part that attaches to the tracker is very sturdy. I don't know what kind of supporting mechanism is behind these things, but somehow, the best part about these isn't the fact that the behind-the-ankle design prevents the straps from getting loose and falling off of your foot - it's the fact that the trackers themselves are EXTREMELY sturdy, and never wiggle around. With other straps that simply loop around the bottom of the foot or ankle, the trackers tend to wiggle around a lot and cause either tracking loss or very jittery movement. With these, the trackers stay where they are relative to your foot, and it couldn't be better.Overall, paying a premium for these is worth it! You even get a free (very fun) game with it!