Arc'teryx H·150 Riggers Belt
But, when it comes to serious field work, I wear an Arc'teryx H-150 Riggers Belt.
I've worn many riggers belts. Some very good, some very bad. The one thing that all had in common was weight and stiffness. They are really heavy and the metal rings used to attach a tether line or binner with a rope (emergency) are usually in the way. It was a needed annoyance. Until Arc'teryx came out with the H-150.
This belt reminds me of the very ergonomic and comfortable climbing harnesses that Arc'teryx makes. I own several and when I tried the H-150 that was it, I bought one. The belt is essentially the top part of the harness, without the leg loops. Of course with some modifications. It is flexible and light weight and it uses Arc'teryx's new Warp Strength Technology. Basically the core is strong but allows for a lighter, more flexible material. The buckle is the same as a climbing harness and the retention loop is a hardened piece of webbing.
I wore the belt on a helicopter ride, tethered to the main cabin and also as an emergency rappel harness. It performed.
Here you have some pictures.