Those HFT chairs go on sale pretty regularly in the spring at 19.99
Dunno the brand without going outside to look, but I picked up a chair to supplement my HFT chair, it is called the "Big Boy", and is rated to something like 300# and is a big wider. Very comfortable, and the extra wide stance makes it that much more stable on uneven ground. And for fat guys.
Also this chair supports heavier/wider sitters. It sits a little low to the ground but is quite comfortable and stores very compact - so small you can strap it to your day pack while hiking/hunting/fishing and have a comfy spot to rest and keep your butt dry.
https://smile.amazon.com/gp/product/B01 ... UTF8&psc=1