Gould & Goodrich used to make really nice "synthetic leather" holsters. I have one that handles several of my guns but mostly it suits my 2.5" M 686+. I have had it for years and it's like new because I rarely use it. It is a high ride belt holster. I am not at all sure of the material except that it looks like leather but it is not leather. I don't think they make these any longer but a good search might turn one up.

For a M36 it might be ahrder but there are plenty of nylon and Kydex holsters available.