I've been using Blade-Tech's Ultimate Carry Belt for almost a year now, and as ballistic nylon belts I've tried, this one is head-and-shoulders better than the rest. I bought ,mine at my LGS, but they can be found many places online.
https://shop.opticsplanet.com/blade-tech-ultimate-carry-belt.html?_iv_code=06-SGB-BTUCB-UCB-1-1-1&utm_source=google&utm_medium=cpc&-CENSORED--CENSORED--CENSORED--CENSORED--CENSORED--CENSORED--CENSORED--CENSORED--CENSORED--CENSORED--CENSORED--CENSORED-=plusbox-beta&gclid=Cj0KCQiAkNfSBRCSARIsAL-u3X96vwcxxCVXbkB7GwUgIPVHOouGnx8hc7HBUNeJCbU6_bffcfeN2GsaAoftEALw_wcB
Why do I like this belt so much?
It looks like a regular belt.
It works like a regular belt; no double-threading the tongue through a buckle.
It's 1.5 inches wide, so it'll easily fit just about any style of pants/shorts belt loops.
It has a built-in stiffener insert, so no sagging over time.
It has one inch incremental marks on the inside making a custom fit a little easier.
It's a ratchet-style, which makes it nearly infinitely adjustable (1/4 inch adjust-ability).
Because it's a ratchet there's never any slippage while wearing. Walk, run, jump, crawl without fear of loosening the belt.
All parts are heavy duty; the buckle is milled steel, the ratchets are carbon fiber, etc.
Only issues are that you need a set of heavy duty scissors/tin snips to cut the belt to size and a hex driver to secure the buckle to the belt.
The only thing that could make this belt better would be if it came with a leather/suede backer for just a little more long-term comfort. That said, I've worn the belt for up to 10 hours straight and for a nylon belt it was pretty comfortable.
For games or military-type training, maybe it's not the best choice, but for EDC or training classes, it's the best belt I've found so far under $100.