>>1594096If I understand you correctly, the kind of knife you may be wanting is a camp knife.
<--Mine, both D2, KOA Bush camp & Elk hunter. I don't use the Elk Hunter anywhere near as much as the camp knife and the camp knife takes a back seat to the smaller caping knife and even that get used less than my cheapo EDC pocket knife, but it's nice to have options.
A leather sheath is doable if you impregnate it with olive oil, but yeah kydex does have some advantages in that you don't need to care for it as much.
Or take a look at these...
https://www.bladehq.com/cat--Camping-Knives--3259#/filter:blade_length:5:*/filter:sheath:Kydex 