Those &Sons gloves are basically the sort of gloves worn by ranch hands in the States, usually very thick but soft leather, and they’re nearly always a pale tan, those look a bit darker. If you get some Mink Oil or Renapur Wax, and give them a good coating, it’ll darken them down a bit, and also make them more weather resistant.
They’re popular with bikers in the States as well, which is why those are attached to a chain, not something I’d choose to do, but then, I’m not a biker!
I’ve fancied a pair of gloves like that for ages, I did have some years ago, but they were quite thin and I wore them out, so I might check those out.
Here you go, they do black ones as well, so probably what you’re looking for.
&SONS Adventure Gloves Black